Patrick O'Connor, Ph.D.

Professor of Anatomy and Neuroscience
Ohio University
Email

Publications

Peer-Reviewed Articles

In Press/In Review

1. O’Connor, P. M., D. W. Krause, N. J. Stevens, J. R. Groenke, R. D. E. MacPhee, and D. Kalthoff. A new mammal from the Upper Cretaceous (Turonian - Campanian) Galula Formation, southwestern Tanzania. Acta Paleontologica Polonica. Accepted January 2019.

2. Forster, C. A., P. M. O’Connor, L. M. Chiappe, and A. H. Turner. Osteology of the Late Cretaceous paravian Rahonavis ostromi. Paleontologica Electronica. In Revision November 2018.

3. Gorscak, E. and P. M. O’Connor. A new African titanosaurian sauropod dinosaur from the middle Cretaceous Mtuka Member of the Galula Formation, southwestern Tanzania. PLoS ONE. In Revision November 2018.

4. Krause, D. W., J. J. W. Sertich, P. M. O’Connor, K. Curry Rogers, and R. R. Rogers. The Mesozoic biogeographic history of Gondwanan terrestrial vertebrates: Insights from Madagascar's fossil record. Annual Reviews Earth and Planetary Sciences. Accepted December 2018.

Published

66. Saber, S., J. J. W. Sertich, H. M. Sallam, K. A. Ouda, P. M. O’Connor, and E. R. Seiffert. An enigmatic crocodyliform from the Upper Cretaceous Quseir Formation, central Egypt. Cretaceous Research 90:174-184-420 (2018) https://doi.org/10.1016/j.cretres.2018.04.004. PDF available upon request

65. Sallam, H. M., E. Gorscak, P. M. O’Connor, I. el-Dawoudi, S. el-Sayed, S. Saber, M. A. Kora, J. J. W. Sertich, E. R. Seiffert, and M. Lamanna. New Egyptian sauropod reveals Late Cretaceous dinosaur dispersal between Europe and Africa. Nature Ecology and Evolution 2:445-451 (2018) doi:10.1038/s41559-017-0455-5. PDF available upon request

64. Widlansky, S. J. W. C. Clyde, P. M. O’Connor, E. M. Roberts, and N. J. Stevens. Paleomagnetism of the Cretaceous Galula Formation and implications for vertebrate evolution. Journal of African Earth Sciences 139:403-420 (2018) DOI: 10.1016/j.jafrearsci.2017.11.029. PDF available upon request

63. Tsuihiji, T., B. Andres, P. M. O’Connor, M. Watabe, K. Tsogtbaatar, and B. Mainbayer. Gigantic pterosaur remains from the Upper Cretaceous of Mongolia. Journal of Vertebrate Paleontology 37:e1361431 (2017) http://dx.doi.org/10.1080/02724634.2017.1361431. PDF available upon request

62. Gorscak, E., P. M. O’Connor, N. J. Stevens, and E. M. Roberts. The second titanosaurian (Dinosauria: Sauropoda) from the middle Cretaceous Galula Formation, southwestern Tanzania with remarks on African titanosaurian diversity. Journal of Vertebrate Paleontology 37 (2017) http://dx.doi.org/10.1080/02724634.2017.1343250.PDF available upon request

61. Holloway, W. L., K. M. Claeson, H. M. Sallam, J. J. W. Sertich, and P. M. O’Connor. A new species of the neopterygian fish Enchodus from the Duwi Formation, Campanian, Late Cretaceous, Western Desert, central Egyptr. Acta Palaeontologica Polonica 62:603-611 (2017) doi:https://doi.org/10.4202/app.00331.2016. PDF available upon request

60. Hilbert-Wolf, H. L., E. M. Roberts, R. Downie, C. Mtelela, N. J. Stevens, and P. M. O’Connor. Application of U-Pb detrital zircon geochronology to drill cuttings for age control in hydrocarbon exploration wells: a case study from the Rukwa Rift Basin, Tanzania. Bulletin of the American Association of Petroleum Geologists 110:143-159 (2017). PDF available upon request

59. Mtelela, C, E. M. Roberts, H. L. Hilbert-Wolf, R. Downie, M. S. Hendrix, P. M. O’Connor, and N. J. Stevens. Sedimentology and paleoenvironments of a new fossiliferous late Miocene-Pliocene sedimentary succession in the Rukwa Rift Basin, Tanzania. Journal of African Earth Sciences 129:260-281 (2017). PDF available upon request

58. P. M. O’Connor. Ancient avian aria from Antarctica. Nature 538:468-469 (2016). PDF available upon request

57. Lund, E. K., P. M. O’Connor, M. A. Loewen, and Z. A. Jinnah. A New Centrosaurine Ceratopsid, Machairoceratops cronusi gen et sp. nov., from the upper sand member of the Wahweap Formation (Middle Campanian), Southern Utah. PLoS ONE 11(5):e0154403 (2016) doi:10.1371/journal.pone.0154403. PDF available upon request

56. Ratsimbaholison, N. O., R. N. Felice, P. M. O’Connor. Ontogenetic changes in the craniomandibular skeleton of Majungasaurus crenatissimus from the Late Cretaceous of Madagascar. Acta Palaeontologica Polonica 61:281-292 (2016). PDF available upon request

55. Roberts, E. M., C. N. Todd, D. K. Aanen, T. Nobre, H. L. Hilbert-Wolf, P. M. O’Connor, L. Tapanila, C. Mtelela, and N. J. Stevens. Oldest evidence of fungus-farming termites reveals Paleogene origin of agriculture. PLoS ONE 61:DOI: 10.1371/journal.pone.0156847 (2016). PDF available upon request

54. E. Gorscak and P. M. O’Connor. Time-calibrated models support congruency between Cretaceous rifting and titanosaurian evolutionary history. Biology Letters 12:20151047 (2016) doi.org/10/1098/rsbl.2015.1047. PDF available upon request

53. Sallam, H. M., P. M. O’Connor, M. Kora, J. J. W. Sertich, E. R. Seiffert, M. Faris, K Ouda, I. el-Dawoudi, and S. Saber. Vertebrate paleontological exploration of the Upper Cretaceous succession in the Dakhla and Kharga oases, Wester Desert, Egypt. Journal of African Earth Sciences 117:223-234 (2016). PDF available upon request

52. Felice, R. N., and P. M. O’Connor. Function drives caudal skeletal variation in sexually dimorphic passeriforms. Journal of Avian Biology 47:371-377 (2016) doi:[10.1111/jav.00801]. PDF available upon request

51. Hoffmann, S., P. M. O’Connor, E. C. Kirk, J. Wible, and D. W. Krause. Endocranial and inner morphology of Vintana sertichi (Mammalia, Gondwanatheria) from the Late Cretaceous of Madagascar. Soc Vert Paleont Mem Ser, J Vert Paleont 34(Supl. 6):110-137 (2014). PDF available upon request

50. Krause, D. W., S. Hoffmann, J. R. Wible, E. C. Kirk, J. A. Schultz, W. v. Koenigswald, J. R. Groenke, J. B. Rossie, P. M. O’Connor, E. R. Seiffert, E. R. Dumont, W. L. Holloway, R. R. Rogers, L. J. Rahantarisoa, A. D. Kemp, and H. Andriamialison. First cranial remains of gondwanatherian mammal reveal remarkable mosaicism. Nature 515:512-517 (2014). PDF available upon request

49. Krause, D. W., J. R. Wible, S. Hoffmann, J. R. Groenke, P. M. O’Connor, W. L. Holloway, J. B. Rossie. Craniofacial morphology of Vintana sertichi (Mammalia, Gondwanatheria) from the Late Cretaceous of Madagascar. Soc Vert Paleont Mem Ser, J Vert Paleont 34(Supl. 6):14-109 (2014). PDF available upon request

48. Kirk, E. C., S. Hoffmann, A. D. Kemp, D. W. Krause, and P. M. O’Connor. Sensory anatomy and sensory ecology of Vintana sertichi (Mammalia, Gondwanatheria). Soc Vert Paleont Mem Ser, J Vert Paleont 34(Supl. 6):203-222 (2014). PDF available upon request

47. Felice, R. N., and P. M. O’Connor. Ecology and caudal skeleton morphology in birds: The convergent evolution of pygostyle shape in underwater foraging taxa. PLoS One 9(2): e89737. doi:10.1371/journal.pone.0089737 (2014).

46. Gorscak, E., P. M. O’Connor, N. J. Stevens, and E. M. Roberts. The basal titanosaurian Rukwatitan bisepultus (Dinosauria: Sauropoda) from the middle Cretaceous Galula Formation, Rukwa Rift Basin, southwestern Tanzania. Journal of Vertebrate Paleontology 34:1133-1154 (2014).

45. Roberts, E. M., M. C. Lamanna, J. A. Clarke, J. Meng, E. Gorscak, J. J. W. Sertich, P. M. O’Connor, K. M. Claeson, and R. D. E. MacPhee. Stratigraphy and vertebrate paleoecology of Upper Cretaceousl-?lowest Paleogene strata on Vega Island, Antarctica. Palaeogeography, Palaeoclimatology, Palaeoecology 402:55-72 (2014).

44. Claeson, K. M., H. M. Sallam, P. M. O’Connor, and J. J. W. Sertich. A revision of the Upper Cretaceous lepidosirenid lungfishes from the Quseir Formation, Western Desert, Central Egypt. Journal of Vertebrate Paleontology 34:760-766 (2014).

43. Sertich, J. J. W., and P. M. O’Connor. A new crocodyliform from the middle Cretaceous Galula Formation, southwestern Tanzania. Journal Vertebrate Paleontology 34:576-596 (2014).

42. McCartney, J. A., Stevens, N. J., and P. M. O’Connor. The earliest colubroid-dominated snake fauna from Africa: Perspectives from the late Oligocene Nsungwe Formation of southwestern Tanzania. PLoS One 9(3):e90415. doi:10.1371/journal.pone.0090415 (2014).

41. Stevens, N. J., R. Hill, M. Al-Wosabi, A. Schulp, M. As-Saruri, F. Al-Nimey, L. Jolley, Y. Schulp-Stuip, and P. M. O’Connor. A middle Eocene mesoeucrocodylians (Crocodyliformes) from the Kaninah Formation, Republic of Yemen. Geologos 19(2):175-183 (2013).

40. Lee, A. H., and P. M. O’Connor. Bone histology confirms determinate growth and small body size in the noasaurid theropod Masiakasaurus knopfleri. Journal Vertebrate Paleontology 33:865-876 (2013).

39. Stevens, N. J., E. R. Seiffert, P. M. O’Connor, E. M. Roberts, M. D. Schmitz, C. Krause, E. Gorscak, S. Ngasala, T. L. Hieronymus, and J. Temu. Palaeontological evidence for an Oligocene divergence between Old World monkeys and apes. Nature 497:611-614 [doi:10.1038/nature12161] (2013).

38. Gutzwiller, S, A. Su, and P. M. O’Connor. Postcranial pneumaticity and bone structure in two clades of neognath birds. Anatomical Record 296:867-876 (2013)

37. Roberts, E. M., N. J. Stevens, P. M. O’Connor, P. H. G. M. Dirks, M. D. Gottfried, W.C. Clyde, R. A. Armstrong, A. I. S. Kemp, and S. Hemming. Initiation of the western branch of the East Africa Rift coeval with the eastern branch. Nature Geoscience: 5:289-294. DOI:10.1038/NGEO1432 (2012).

36. Simons, E. L. R. and P. M. O’Connor. Bone laminarity in the avian forelimb skeleton and its relationship to flight mode: Testing Functional Interpretations. Anatomical Record 295:386-396 (2012).

35. Benson, R. B. J., R. J. Butler, M. T. Carrano, and P. M. O’Connor. Air-filled postcranial bones in theropod dinosaurs: physiological implications and the ‘reptile’-bird transition. Biological Reviews 87:168-193. DOI:10.1111/j.1469-185x.2011.00190.x (2012).

34. Simons, E. L. R., T. L. Hieronymus, and P. M. O’Connor. Cross sectional geometry of the forelimb skeleton and flight mode in pelecaniform birds. J Morphology 272(8):958-971 (2011).

33. Zanno, L. E., D. J. Varricchio, P. M. O’Connor, A. L. Titus, and M. J. Knell. A new troodontid theropod, Talos sampsoni gen. et sp. Nov., from the Upper Cretaceous Western Interior Basin of North America. PLoS ONE 6(9):e24487. doi:10.1371/journal.pone.0024487 (2011).

32. O’Connor, P. M. , J. J. W. Sertich, and F. C. Manthi. A pterodactyloid pterosaur from the Upper Cretaceous Lapurr sandstone, West Turkana, Kenya. Ann Brazilian Acad Sci 83: 309-315 (2011).

31. Kley, N., J. Sertich, A. Turner, D. Krause, P. M. O’Connor, and J. Georgi. Craniofacial morphology of Simosuchus clarki (Crocodyliformes: Notosuchia) from the Late Cretaceous of Madagascar. Soc Vert Paleont Mem Ser 30 (6, Supplement): 13-98 (2010).

30. O’Connor, P. M., J. J. W. Sertich, N. J. Stevens, E. M. Roberts, M. D. Gottfried, T. L. Hieronymus, Z. A. Jinnah, R. Ridgely, S. E. Ngasala, and J. Temba. The evolution of mammal like crocodyliforms in the Cretaceous of Gondwana. Nature 466:748-751 (2010) DOI 10.1038/nature09061.

Associated Files: TNT File in Zip format
Supplementary Information PDF

29. O’Connor, P. M., and C. A. Forster. A Late Cretaceous (Maastrichtian) avifauna from the Maevarano Formation, Northwestern Madagascar. J Vert Paleont 30:1178-1201 (2010).

28. Roberts, E.M., P. M. O’Connor, N. J. Stevens, M. D. Gottfried, Z. A. Jinnah, S. E. Ngasala, and R. A. Armstrong. Sedimentology and depositional environments of the Red Sandstone Group, Rukwa Rift Basin, southwestern Tanzania: New insight into Cretaceous and Paleogene terrestrial ecosystems and tectonics in sub-equatorial Africa. African Journal of Earth Sciences 57 (Presidential Review Paper 15:179-212 (2010).

27. Berryman, D. E., E. O. List, A. J. Palmer, M. Chung, J. Wright-Piekarski, E. Lubbers, P. M. O’Connor, S. Okada, and J. J. Kopchick. Two-year body composition analysis of long-lived GHR null mice.: Journal of Gerontology A Biol Sci Med Sci 65:31-40 doi:10.1093/Gerona/glp175 (2010).

26. O’Connor, P. M. Evolution of archosaurian body plans: skeletal adaptations of an air–sac–based breathing apparatus in birds and other archosaurs. J Exp Zool 311A:629-646 (2009).

25. Carrano, M. T., D. W. Krause, P. M. O’Connor, S. D. Sampson. Megalosaurus crenatissimus Deperet, 1896 (currently Majungasaurus crenatissimus; Dinosauria, Theropoda): proposed replacement of the holotype by a neotype. Bulletin of Zoological Nomenclature 66(3):261-264 (2009).

24. Stevens, N. J., P. A. Holroyd, E. M. Roberts, P. M. O'Connor, and M. D. Gottfried. Kahawamys mbeyaensis (n. gen., n. sp.) (Rodentia: Thryonomyoidea) from the late Oligocene Rukwa Rift Basin, Tanzania. Journal of Vertebrate Paleontology 29:631-634 (2009)

23. Gottfried, M. D., N. J. Stevens, E. M. Roberts, P. M. O’Connor, and R. Chami. A new Cretaceous lungfish (Dipnoi: Ceratodontidae) from the Rukwa Rift Basin, Tanzania. African Natural History 5:1-6 (2009).

22. Stevens, N. J., P. M. O’Connor, E. M. Roberts,M. D. Gottfried. Rukwalorax kitanajino (n. gen., n. sp.) (Mammalia: Hyracoidea) from the late Oligocene Rukwa Rift Basin, Tanzania. Journal of Vertebrate Paleontology 29(3):972-975 (2009).

21. Schulp, A. S., P. M. O’Connor, D. B Weishampel, A. Al-Sayigh, A. Al-Harthy, J. W. M. Jagt, and A. F. Hartman. Ornithopod and sauropod dinosaur remains from the Maastrichtian Al-Khod Conglomerate, Sultanate of Oman. Sultan Qaboos University Journal of Sciences 13:27-32 (2009).

20. Claessens, L. P. A. M., P. M. O’Connor, and D. M. Unwin. Respiratory evolution facilitated the origin of pterosaur flight and aerial gigantism. PLOS One 4(2):e4497. doi:10.1371/journal.pone.0004497 (2009).

19. Stevens, N. J., M. D. Gottfried, E. M. Roberts, S. Kapilima, S. Ngasala, and P. M. O’Connor. Paleontological exploration in Africa: A view from the Rukwa Rift Basin of Tanzania, pp. 159-180 in Developments in Primatology: Progress and Prospects, J. G. Fleagle & C. C. Gilbert (eds.) (2008).

18. O’Connor, P. M. The postcranial axial skeleton of Majungasaurus crenatissimus (Theropoda: Abelisauridae) from the Late Cretaceous of Madagascar. Society of Vertebrate Paleontology Memoir Series 27 (Suppl. 2):127-162 (2007).

17. Feldmann, R. M., P. M. O’Connor, N. J. Stevens, M. D. Gottfried, E. M. Roberts, S. Ngasala, E. L. Rasmusson, and S.Kapilima. A new freshwater crab (Decapoda: Brachyura: Potamonautidae) from the Paleogene of Tanzania, Africa. Neues Jahrbuch fur Geologie und Palaontologie 244:71-78 (2007).

16. Farke, A. A., and  P. M. O’Connor. Pathology in Majungasaurus crenatissimus (Theropoda: Abelisauridae) from the Late Cretaceous of Madagascar. Society of Vertebrate Paleontology 27 (Suppl. 2):180-184 (2007).

15. Krause, D. W., S. D. Sampson, M. T. Carrano, and P. M. O’Connor. Overview of the history of discovery, taxonomy, phylogeny, and biogeography of Majungasaurus crenatissimus (Theropoda: Abelisauridae) from the Late Cretaceous of Madagascar. Society of Vertebrate Paleontology Memoir Series 27 (Suppl. 2):1-20 (2007).

14. Fajardo, R. J., E. Hernandez, and P. M. O’Connor. Postcranial skeletal pneumaticity: A methods case study in the use of quantitative microCT to assess vertebral structure in birds. Journal of Anatomy 211: 138-147 (2007).

13. O’Connor, P. M. , M. D. Gottfried, N. J. Stevens, E. M. Roberts, S. Ngasala, S. Kapilima, and R. Chami. A new vertebrate fauna from the Cretaceous Red Sandstone Group, Rukwa Rift Basin, southwestern Tanzania. Journal of African Earth Sciences 44:277-288 (2006).

12. Krause, D. W., P. M. O’Connor, A. H. Rasoamiaramanana, G. A. Buckley, D. Burney, M. T. Carrano, P. S. Chatrath, J. J. Flynn, C. A. Forster, L. R. Godfrey, W. L. Jungers, R. R. Rogers, K. E. Samonds, E. L. Simons, and A. R. Wyss. The importance of keeping the island’s vertebrate fossils in the public domain. Madagascar Conservation and Development 1(1):43-47 (2006).

11. P. M. O’Connor Postcranial pneumaticity: an evaluation of soft-tissue influences on the postcranial skeleton and the reconstruction of pulmonary anatomy in archosaurs. Journal of Morphology 267:1199-1226 (2006) (DOI: 10.1002/jmor.10470).

10. Krause, D. W., P. M. O’Connor, K. Curry Rogers, S. D. Sampson, G. A. Buckley, and R. R. Rogers. Late Cretaceous terrestrial vertebrates from Madagascar: implications for Latin American Biogeography. Annals of the Missouri Botanical Garden 93:178-208 (2006).

9. Stevens, N. J., P. M. O’Connor, M. D. Gottfried, E. M. Roberts, S. Ngasala, and M. Dawson. Metaphiomys (Rodentia: Phiomyidae) from the Paleogene of southwestern Tanzania. Journal of Paleontology 80(2):407-410 (2006).

8. Stevens, N. J., and P. M. O’Connor. Abiotic and biotic factors as predictors of species richness on Madagascar; pp. 269-300 in Primate Biogeography (eds.) S. M. Lehman and J. G. Fleagle. Springer: New York (2006).

7. Stevens, N. J., P. M. O’Connor, M. D. Gottfried, E. M. Roberts and S. Ngasala. An anthropoid primate humerus from the Rukwa Rift Basin, Paleogene of southwestern Tanzania. Journal of Vertebrate Paleontology 25(4):986-989 (2005).

6. O'Connor, P. M., and L. P. A. M. Claessens. Basic avian pulmonary design and flow-through ventilation in non-avian theropod dinosaurs. Nature 436:253-256 (2005).

5. Roberts, E. M., P. M. O’Connor, M. D. Gottfried, N. J. Stevens, and S. Kapilima. Revised stratigraphy and age of the Red Sandstone Group in the Rukwa Rift Basin, Tanzania. Cretaceous Research 25:749-759 (2004).

4. O’Connor, P. M. Pulmonary pneumaticity in the postcranial skeleton of extant birds: A case study examining anseriforms. Journal of Morphology Vol.261:141-161 (2004).

3. Gottfried, M. D., P. M. O’Connor, F. Jackson, E. M. Roberts, and R. Chami. Dinosaur Eggshell from the Red Sandstone Group of Tanzania. Journal of Vertebrate Paleontology 24(2):494-497 (2004).

2. Krause, D. W., M. D. Gottfried, P. M. O’Connor, and E. M. Roberts. A Cretaceous mammal from Tanzania. Acta Palaeontologica Polonica 48(3):321-330 (2003).

1. Sampson, S. D., L. M. Witmer, C. A. Forster, D. W. Krause, P. M. O’Connor, P. D. Dodson, and F. Ravoavy. Predatory dinosaur remains from Madagascar: implications for the Cretaceous biogeography of Gondwana. Science 280:1048-1051 (1998).

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Book Chapters, General/Technical Publications and Short Reports

7. O’Connor, P. M. Book Review of Living Dinosaurs: The Evolutionary History of Modern Birds eds. G. Dyke & G. Kaiser Journal of Vertebrate Paleontology 34:241-242 (2013).

6. Loewen, M. A.., Farke, A. A., Sampson, S. D., Getty, M. A., Lund, E. K., and P. M. O’Connor. Ceratopsid dinosaurs from the Grand Staircase of southern Utah, pp. 488-503 in (Titus, A. L., and M. A. Loewen, eds.) At the top of the Grand Staircase: The Late Cretaceous of southern Utah., Indiana University Press (2013).

5. O’Connor, P. M., and Claessens, L. P. A. M. Respiratory evolution in sauropsids: Progress and new approaches. Journal of Experimental Zoology 311A:549-550 (2009).

4. Carrano, M. T., and P. M. O’Connor. Bird's-eye View. Natural History 114(4):42-47 (2005)

3. O’Connor, P. M., M. D. Gottfried, E. M. Roberts, S. Ngasala, N. J. Stevens, S. Kapilima, and R. Chami. New Cretaceous vertebrate fossil discoveries from the Red Sandstone Group, Rukwa Rift Basin, southwestern Tanzania. East African Rift System (EAR05): Geodynamics, environment, resources & sustainable development 1:82-84 (2005).

2. Roberts, E. M., S. Ngasala, S. Kapilima, P. M. O’Connor, M. D. Gottfried, N. J. Stevens, and R. Chami. Stratigraphic and sedimentological analysis of the Red Sandstone Group in the Songwe Valley, Mbeya District. East African Rift System (EAR05): Geodynamics, environment, resources & sustainable development 1:87-90 (2005).

1. O’Connor, P. M., and B. Demes.  Atlas of Neuroanatomy.  Department of Anatomical Sciences, University of New York – Stony Brook, 33pp. (2000).

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Published Abstracts

89. O’Connor, P. M., J. J W. Sertich, N. J. Stevens, and E. M. Roberts. Developing a view of a southern Gondwanan faunal province: Information from the middle Cretaceous of Central Africa. Journal Vertebrate Paleontology, Program and Abstracts, p. 197 (2014).

88. Gorscak, E. and P. M. O’Connor. Re-evaluation of Cretaceous paleobiogeographical patterns using morphological clock and model-based approaches: A case study using titanosaurian sauropods with evidence for a more centralized role for continental Africa. Journal Vertebrate Paleontology, Program and Abstracts, p. 130 2014.

87. Tumarkin-Deratzian, A., J. J. W. Sertich, M. C. Lamanna, P. M. O’Connor, and M. Abdelghany. A large-bodied crocodyliform from the Upper Cretaceous Bahariya Formation, Bahariya Oasis, western Desert of Egypt. Journal Vertebrate Paleontology, Program and Abstracts, p. 242 2014.

86. Ratsimbaholison, N. O., R. N. Felice, and P. M. O’Connor. Craniomandibular ontogeny in nonavian theropods dinosaurs: insights from the abelisaurid Majungasaurus crenatissimus. Journal Vertebrate Paleontology, Program and Abstracts, p. 211 2014.

85. Stevens, N. J., E. M. Roberts, E. R. Seiffert, J. McCartney, D. Blackburn, J. Temu, and P. M. O’Connor. Paleobiological patterns in the late Oligocene Nsungwe Formation fauna, southwestern Tanzania. Journal Vertebrate Paleontology, Program and Abstracts, p. 235 2014.

84. Felice, R. N., and P. M. O’Connor. Examining the relationship among foraging style, rectricial morphology, and the caudal skeleton in birds. Soc Int Comp Biol Abstracts 2014.

83. Ratsimbaholison, N. O., R. N. Felice, and P. M. O’Connor. Ontogenetic trends in the craniomandibular skeleton of Majungasaurus crenatissimus and derivation of the abelisaurid skull morphotype. Journal Vertebrate Paleontology, Program and Abstracts, p. 196 (2013).

82. Sertich, J. J. W., P. M. O’Connor, F. K. Manthi, and E. R. Seiffert. A Late Cretaceous (Maastrichtian) vertebrate fauna from Kenya. Journal Vertebrate Paleontology, Program and Abstracts, p. 211 2013.

81. P. M. O’Connor, N. J. Stevens, E. M. Roberts, J. J. W. Sertich, and E. Gorscak. Uncovering the Cretaceous terrestrial vertebrate record of sub-Saharan Africa: New information from the middle Cretaceous Galula Formation, Rukwa Rift Basin (East African Rift System), southwestern Tanzania. Abstracts of the Annual Meeting of the Geological Society of America, Program and Abstracts, p. 247 2013.

80. Hilbert-Wolf, H., E. M. Roberts, C. Mtelela, P. M. O’Connor, and N. J. Stevens. Constraining the timing of Cenozoic rifting and basin development in the Rukwa Rift Basin of the East African Rift System via detrital zircon geochronology. Abstracts of the Annual Meeting of the Geological Society of America, August 2013.

79. Roberts, E. M., P. M. O’Connor, and N. J. Stevens. A systematic approach to dating Mesozoic-Paleogene continental vertebrate asseblages in Africa. Supplement to the online Journal of Vertebrate Paleontology, October 2013, p. 200.

78. Hilbert-Wolf, H., E. M. Roberts, R. Brown, P. M. O’Connor, and N. J. Stevens. Deciphering the links between landscape change and vertebrate evolution using U/Pb geochronology and detrital thermochronology: A case study from the Rukwa Rift Basin. Supplement to the online Journal of Vertebrate Paleontology, October 2013, p. 143.

77. Stevens, N. J., P. M. O’Connor, and E. M. Roberts. Continental vertebrates form the late Oligocene Nsungwe Formation (Southwestern Tanzania) and faunal dynamic in sub-Saharan Africa during the Paleogene-Neogene Transition. Abstracts of the Annual Meeting of the Geological Society of America, August 2013.

76. Holloway, W., K., Claeson, J. Sertich, H. Sallam, and P. M. O’Connor. A new specimen of Enchodus (Actinopterygii: Protacanthopterygii) from the Late Cretaceous of Egypt and its contribution to the western Tethyan distribution of the genus. Supplement to the online Journal of Vertebrate Paleontology, October 2013, p. 144.

75. Gorscak, E., and P. M. O’Connor. Integrating temporal data within a phylogenetic analysis: A Bayesian approach for characterizing divergence estimates in an extinct clade. Supplement to the online Journal of Vertebrate Paleontology, October 2013, pp. 135-136.

74. Stevens, N. J., E. R. Seiffert, E. M. Roberts, and P. M. O’Connor. Primate diversity in the late Oligocene Nsungwe Formation of southwestern Tanzania. Supplement to the online Journal of Vertebrate Paleontology, October 2013, p. 219.

73. Hoffman, S., P. M. O'Connor, and D. W. Krause. First endocranial reconstruction of a gondwanatherian mammal. Supplement to the online Journal of Vertebrate Paleontology, October 2013, p. 143.

72. Gorscak, E., P. M. O'Connor, N. J. Stevens, E. M. Roberts. New basal titanosaurian sauropod remains from the Middle Cretaceous Galula Formation, Rukwa Rift Basin, southwestern Tanzania. Abstracts of the Annual Meeting of the Geological Society of America, August 2012.

71. Roberts, E. M., N. J. Stevens, P. M. O'Connor, P. H. G. M. Dirks, M. D. Gottfried, W. Clyde, R. A. Armstrong, A. I. S. Kemp, and S. Hemming. Did the western and eastern branches of the East African Rift System develop synchronously? 34th International Geologic Congress, Abstracts 3636 2012.

70. Lund, E. K., P. M. O’Connor, M. A. Loewen, and Z. Jinnah. New centrosaurine ceratopsid material from the Wahweap Formation (Middle Campanian), southern Utah. Supplement to the online Journal of Vertebrate Paleontology, October 2012.

69. Stevens, N. J., P. M. O'Connor, E. M. Roberts. A new taxon of Diamantomys from the late Oligocene Nsungwe Formation, Rukwa Rift Basin, southwestern Tanzania. Supplement to the online Journal of Vertebrate Paleontology, October 2012.

68. Tsuihiji, T., and P. M. O’Connor. Reconstruction of muscular and pneumatic systems in the neck and anterior trunk of Abelisauridae: insights from Majungasaurus crenatissimus (Dinosauria: Theropoda). Supplement to the online Journal of Vertebrate Paleontology, October 2012.

67. O’Connor, P. M., T. L. Hieronymus, N. J. Stevens, and J. J. W. Sertich. Morphological evolution in basal mesoeucrocodylians: Tracking body size and dental trends in Notosuchia. Supplement to the online Journal of Vertebrate Paleontology, October 2012.

66. Gutzwiller, S, A. Su, and P. M. O’Connor. The relationship among bone volume fraction, cortical thickness, and pneumaticity in charadriiform birds. Soc Int Comp Biol Abstracts (2012).

65. MacPhee, R., J. Clarke, E. Gorscak, M. Lamanna, P. M. O’Connor, J. Meng, E. M. Roberts, J. Sertich, and S. Salisbury. New fossil discoveries from the Late Cretaceous of James Ross and Vega Islands, West Antarctica. 11th International Symposium on Antarctic Earth Sciences, Programme and Abstracts, p. 265 . (2011)

64. O’Connor, P. M., R. R. Rogers, J. R. Groenke, S. H. Burch, and A. H. Turner. A multi-taxon theropod dinosaur accumulation from the Late Cretaceous of Madagascar: near-instantaneous entombment of small-bodied avialans. J Vert Paleont 31 (supl. 3) (2011).

63. Felice, R. N., and P. M. O’Connor. Axial skeletal morphology in crocodyliforms: inferring niche exploitation based on vertebral morphology. J Vert Paleont 31 (supl. 3) (2011).

62. Gorscak, E., P. M. O’Connor, N. J. Stevens, and E. M. Roberts. A basal titanosaurian from the Middle Cretaceous Galula Formation, Rukwa Rift Basin, southwestern Tanzania. J Vert Paleont 31 (supl. 3) (2011).

61. Hill, R. V., and P. M. O’Connor. The evolution of exoskeletal ossifications in notosuchian crocodyliforms. J Vert Paleont 31 (supl. 3) (2011).

60. Lee, A. H., and P. M. O’Connor. Variation in bone histology and growth of the noasaurid theropod Masiakasaurus knopfleri. J Vert Paleont 31 (supl. 3) (2011).

59. Youssef, M., H. Sallam, M. Freidman, P. M. O’Connor, and J. J. W. Sertich. A saurodontid fish from the Late Cretaceous of Dakhla Oasis, Western Desert, Egypt. J Vert Paleont 31 (supl. 3) (2011).

58. Stevens, N. J., S. Egberts, E. M. Roberts, and P. M. O’Connor. Faunal composition of late Oligocene Songwe Member of the Nsungwe Formation, Tanzania. J Vert Paleont 31 (supl. 3) (2011).

57. Rogers, R. R., P. M. O’Connor, J. R. Groenke, and S. H. Burch. Exploring burial dynamics in Cretaceous bonebeds in the Maevarano Formation (Maastrichtian, Madagascar) using field-based data and high-resolution x-ray computed tomography. IV Congress of Latin American Vertebrate Paleontology Abstracts ( 2011).

56. O’Connor, P. M., J. J. W. Sertich, and N. J. Stevens. Craniodental specialization in notosuchian Crocodyliformes: Linking morphology with ecology during the Cretaceous Period Soc Int Comp Biol Abstracts (2011).

55. Fajardo, R. J., J. E. Schmitz, S. Riplog-Peterson, and P. M. O’Connor. A preliminary study of anti-fatigue failure mechanisms in the trochilid skeleton Soc Int Comp Biol Abstracts (2011).

54. Simons, E. L. R., and P. M. O’Connor. Whole bone and cross-sectional morphology of the wing skeleton in procellariiform seabirds: Implications for differences in flight behavior. Soc Int Comp Biol Abstracts (2011).

53. Benson, R., R. Butler, M. Carrano, and P. M. O'Connor. Pneumaticity in theropods. Annual Symposium of Vertebrate Palaeontology and Comparative Anatomy, Cambridge, UK (2010)

52. Krause, D. W., J. J. W. Sertich, P. M. O’Connor. Cosmopolitanism among Late Cretaceous Gondwanan vertebrates: The evidence from Madagascar. NSF Workshop entitled "Austral Portals" in August 2010.

51. O’Connor, P. M., J. J. W. Sertich, H. Sallam, E. R. Seiffert. Reconnaissance paleontology in the Late Cretaceous of Dakhla and Kharga Oases, Western Desert, Egypt. J Vert Paleont (Accepted 2010).

50. Sertich, J. J. W., and P. M. O’Connor. The evolution of trematochampsid crocodyliforms in Africa: New evidence from the middle Cretaceous Galula Formation, Southwestern Tanzania. J Vert Paleont (Accepted 2010).

49. O’Connor, P. M., and S. Gutzwiller. Postcranial skeletal pneumaticity in birds: The evolution of body size, flight mode, and foraging style. Soc Int Comp Biol Abstracts (2010).

48. Roberts, E. M., P. M. O’Connor, N. J. Stevens, M. D. Gottfried, and S. Ngasala. Reconstructing Cretaceous and Paleogene Paleoenvironments and drainage patterns of Central Africa. Geological Society of America Abstracts with Programs. 41(7):243 (2009).

47. Stevens, N. J., M. D. Gottfried, P. M. O’Connor, E. M. Roberts, and S. Ngasala. Vertebrates from newly discovered lacustrine localities in the late Oligocene Nsungwe Formation, Rukwa Rift Basin, Tanzania. J Vert Paleont 29:158A (2009).

46. O’Connor, P. M., and C. A. Forster. The Late Cretaceous (Maastrichtian) avifauna from the Maevarano Formation, northwestern Madagascar: Recent discoveries and new insights related to avian anatomical diversification. J Vert Paleont 29:123A (2009).

45. Stevens, N. J., P. M. O’Connor, E. M. Roberts, M. D. Gottfried, and J. Temba. New primate fossils from the late Oligocene Rukwa Rift Basin of Tanzania. Am J Phys Anthropol 138(s48):247-248 (2009).

44. O’Connor, P. M., N. J. Stevens, J. J. W. Sertich, E. M. Roberts, M. D. Gottfried, T. L. Hieronymus, J. Temba, and Z. A. Jinnah. A notosuchian crocodyliform from the Galula Formation, Red Sandstone Group (middle Cretaceous) of southwestern Tanzania. III Congreso Latinoamericano de Paleontología de Vertebrados, Neuquén, Patagonia, Argentina, Addenda de Resúmenes, p. iii (2008).

43. Roberts, E. M., K. Mgodi, T. J. Broderick, A. M. Yates, and P. M. O’Connor. Discovery of a densely packed "Syntarsus rhodesiensis" bone bed from the Late Triassic-Early Jurassic Forest Sandstone, Mano Pools Basin, Zimbabwe. Journal of Vertebrate Paleontology 28 (suppl. 3):133A (2008).

42. Rasmusson, E. L., and P. M. O’Connor. Cross-sectional geometry of the forelimb skeleton and flight mode in pelecaniform birds. Integrative and Comparative Biology (Submitted) (2008).

41. O’Connor, P. M., J. J. W. Sertich, N. J. Stevens, E. M. Roberts, M. D. Gottfried, and S. Ngasala. The evolution of mammal-like crocodyliforms (Crocodyliformes: Notosuchia) in Gondwana: New evidence from the Middle Cretaceous Galula Formation, Rukwa Rift Basin, southwestern Tanzania. Journal of Vertebrate Paleontology 28 (suppl. 3):122A (2008).

40. O’Connor, P. M., D. W. Krause, S. H. Burch, and N. O. Ratsimbaholison. 2008. The Late Cretaceous (Maastrichtian) theropod fauna of the Maevarano Formation, northwestern Madagascar: new discoveries, new insights and new directions. III Congreso Latinoamericano de Paleontología de Vertebrados, Neuquén, Patagonia, Argentina, Libro de Resúmenes, p. 180 (2008).

39. O’Connor, P. M., and H.-R. Duncker. Postcranial pneumaticity in charadriiform birds: Reexamining relationships among skeletal pneumaticity, body and diving behavior. Integrative and Comparative Biology 47(1):e214 (2007).

38. Stevens, N. J., S. Ngasala, M. D. Gottfried, P. M. O’Connor, and E. M. Roberts. A hyracoid from the Rukwa Rift Basin, Paleogene of Tanzania. Journal of Vertebrate Paleontology 27 (suppl. 3):111A (2007).

37. Gottfried, M. D., N. J. Stevens, P. M. O’Connor, E. M. Roberts, and S. Ngasala. A new fossil record from the African lungfish Protopterus from the Paleogene of Tanzania. Journal of Vertebrate Paleontology 27 (suppl. 3):83A (2007).

36. Roberts, E. M., R. A. Armstrong, P. M. O’Connor, and N. J. Stevens. Late Mesozoic and early Tertiary sedimentary and tectonic evolution of the Rukwa Rift Basin: The 6th PESGB/HGS African Conference—Africa’s Petroleum Systems: From Outcrop to Deepwater, p. 45 (2007).

35. Roberts, E. M., P. M. O’Connor, R. A. Armstrong, N. J. Stevens, and M. D. Gottfried. U-Pb geochronology of detrital zircons from the Rukwa Rift Basin, Tanzania: New data on the pre-Neogene tectonic and sedimentary evolution of the western branch of the East African rift system. Geological Society of America, Abstracts with Programs 39 (2007).

34. O’Connor, P. M., L. Claessens, and D. M. Unwin. Postcranial pneumaticity in pterosaurs: Perspectives on pulmonary structure and the evolution of body size. Flugsaurier, The Wellnhofer Pterosaur Meeting, p. 26-27 (2007).

33. Claessens, L., P. M. O’Connor, and D. M. Unwin. Lung ventilation in pterosaurs. Flugsaurier, The Wellnhofer Pterosaur Meeting, p. 12 (2007).

32. O’Connor, P. M. Evolution of archosaurian Bauplans: nonpulmonary adaptations of an air-sac based breathing apparatus. Journal of Morphology 268(12):1112 (2007).

31. Rasmusson, E. L., and P. M. O’Connor. Morphology of the forelimb skeleton and locomotory behavior in birds: Pelecaniformes and Procellariiformes. Journal of Morphology 268 (12):1122 (2007).

30. Gottfried, M. D., O’Connor, P. M., N. J. Stevens, E. M. Roberts, and S. Ngsala. Recent discoveries from the Cretaceous and Paleogene of the Rukwa Rift Basin, Tanzania, including new Tanzanian fossil records of Neoceratodus and Protopterus (Dipnoi). Eleventh Conference on Vertebrate Evolution, Palaeontology and Systematics. (April 2007).

29. Roberts, E. M., O’Connor, P. M., N. J. Stevens, and M. D. Gottfried. New Cretaceous and Palaeogene vertebrates from the East African Rift, Tanzania: stratigraphic, tectonic and palaeobiogeographical implications. Fourteenth Biennial Congress of the Palaeontological Society of Southern Africa, p. 20 (2006).

28. O’Connor, P. M., N. J. Stevens, M. D. Gottfried, R. Ridgely, and E. M Roberts. New Archosaur discoveries from the Cretaceous Red Sandstone Group of the Rukwa Rift Basin, southwestern Tanzania. Journal of Vertebrate Paleontology 26 (suppl. 3):106A (2006).

27. Claessens, L., D. Unwin, O’Connor, P. M. Evolution of the respiratory apparatus and breathing mechanics in Pterosauria. Journal of Vertebrate Paleontology 26 (suppl. 3):50A (2006).

26. Rasmusson, E. L., and O’Connor, P. M. Proportional and cross-sectional analysis of the forelimb skeleton in birds I: Pelecaniformes and Procellariiformes. Integrative and Comparative Biology 46(1):e239 (2006).

25. Stevens, N. J., S. Ngasala, M. D. Gottfried, O’Connor, P. M., and E. M. Roberts. Macroscelideans from the Oligocene of southwestern Tanzania. Journal of Vertebrate Paleontology 26 (suppl. 3):128A (2006).

24. O'Connor, P. M., M. D. Gottfried, E. M. Roberts, N. J. Stevens, and S. Ngasala. A new vertebrate fauna from the Cretaceous Red Sandstone Group, Rukwa Rift Basin, southwestern Tanzania; p. 172 in Barrett, P. M., and S. E. Evans (eds.), Ninth International Symposium on Mesozoic Terrestrial Ecosystems and Biota, Abstracts and Proceedings (2006).

23. Roberts, E. M., P. M. O'Connor, T. L. Hieronymus, S. Ngasala, M. D. Gottfried, and N. J. Stevens. Stratigraphy, paleoenvironments, and taphonomy of a new Cretaceous Vertebrate fauna from the East African rift, southwestern Tanzania; p. 175 in Barrett, P. M., and S. E. Evans (eds.), Ninth International Symposium on Mesozoic Terrestrial Ecosystems and Biota, Abstracts and Proceedings (2006).

22. Hernandez, E., P. M. O'Connor, and R. J. Fajardo. MicroCT analysis of the axial postcranial skeleton in birds: comparison of centrum bone structure in two anatids with different pneumaticity states. Integrative and Comparative Biology  Vol. 45 (6):1144 (2005).

21. O'Connor, P. M., M. D. Gottfried, E. M. Roberts, N. J. Stevens, and S. Ngasala. New Dinosaurs and other vertebrate fossils from the Cretaceous Red Sandstone Group, Rukwa Rift Basin southwestern Tanzania. Journal of Vertebrate Paleontology  Vol. 25(suppl. 3):97A (2005).

20. Stevens, N. J., P. M. O’Connor, M. D. Gottfried, E. M. Roberts, S. Ngasala, and S. Kapilima. New Paleogene mammals and other vertebrates from the Rukwa Rift Basin, southwestern Tanzania. Journal of Vertebrate Paleontology Vol. 25 (suppl. 3):118A (2005).

19. Gottfried, M. D., P. M. O’Connor, E. M. Roberts, N. J. Stevens, and R. Chami. First Cretaceous lungfish from Tanzania – an enigmatic ceratodontid from the Rukwa Rift Basin. Journal of Vertebrate Paleontology Vol. 25 (suppl. 3):65A (2005).

18. Witmer, L. M., R. C. Ridgely, P. M. O’Connor, C. M. Holliday, T. L. Hieronymus, J. Daniel, E. L. Rasmusson, J. Tickhill, and A. Clifford. The cephalic anatomy of the Florida manatee (Trichechus manatus), as revealed by virtual dissection with computed tomography (CT), differential-contrast dual-vascular injection, and 3D visualization. Evolution of Aquatic Tetrapods Conference (2005).

17. Stevens, N. J., D. Thomas, E. Godfried, R. Godfried, E. Rowland, W. Duerfeldt, M. Grijalva, L. M. Witmer, P. M. O’Connor, M. Berryman, J.Edinger, P. Dane, and J. Brose. Active Learning Best Practices in the Patient Centered Continuum. 2004 AACOM Meetings, Washington, DC (2004).

16. O'Connor, P.M. Postcranial pneumaticity and pulmonary heterogeneity in archosaurs: evolution of the flow-through lung in nonavialan theropod dinosaurs and birds. Journal of Vertebrate Paleontology  Vol. 24 (suppl. 3):99A (2004).

15. Stevens, N. J., M. D. Gottfried, P. M. O’Connor, E. M. Roberts, and S. Kapilima. A new Paleogene fauna from the East African rift, southwestern Tanzania . Journal of Vertebrate Paleontology  Vol. 24 (suppl. 3):118A (2004).

14. Holman, J. A., N. J. Stevens, P. M. O’Connor, M. D. Gottfried, and E. M. Roberts. An enigmatic neobatrachian frog from the Paleogene of southwestern Tanzania . Journal of Vertebrate Paleontology  Vol. 24 (suppl. 3):71A (2004).

13. O’Connor, P. M.  Distal limb pneumaticity in extant birds: anatomical and functional correlates. Journal of Morphology  Vol. 260(3):317 (2004).

12. O’Connor, P. M., M. D. Gottfried, E. R. Roberts, N. J. Stevens, F. D. Jackson, and E. L. Rasmusson.  Closing the ‘African Gap’—a new Cretaceous vertebrate fauna from Tanzania . Journal of Vertebrate Paleontology  Vol. 23 (suppl. 3):84A (2003).

11. Gottfried, M. D., D. W. Krause, P. M. O’Connor, E. M. Roberts, and Y. I. Tulu.  A Cretaceous mammal from Tanzania. Journal of Vertebrate Paleontology  Vol. 23 (suppl. 3):56A (2003).

10. O’Connor, P. M.  Pulmonary pneumaticity in the postcranial skeleton of extant Anseriformes. Integrative and Comparative Biology  Vol. 42 (6):1287 (2002).

9. O’Connor, P. M. Pulmonary Pneumaticity in non-dinosaurian archosaurs with comments on Erythrosuchus and distal forelimb pneumaticity in pterosaurs.  Journal of Vertebrate Paleontology  Vol. 22 (suppl. 3):93A (2002).

8. O’Connor, P. M.  Soft-tissue influences on archosaurian vertebrae: interpreting pneumatic and vascular features. Journal of Vertebrate Paleontology  Vol. 21 (suppl. 3):84A (2001).

7. O’Connor, P. M.   Postcranial pneumaticity in extant avians: distinguishing pulmonary from nonpulmonary pneumaticity. Sixth International Congress of Vertebrate Morphology, Jena, Germany. Journal of Morphology  Vol. 248 (3):268 (2001).

6. Forster, C. A., and P. M. O’Connor.  The avifauna of the Upper Cretaceous Maevarano Formation, Madagascar.  Journal of Vertebrate Paleontology  Vol. 20 (suppl. 3):41-42A (2000)

5. O’Connor, P. M., and N. J. Stevens.  Biotic and abiotic factors as predictors of species richness in Madagascar.  American Journal of Physical Anthropology  Suppl. 30:241 (2000).

4. O’Connor, P. M.  Postcranial pneumatic features and the interpretation of respiratory anatomy from skeletal specimens.  Journal of Vertebrate Paleontology  Vol. 19 (suppl. 3):67A (1999).

3. O’Connor, P. M. , and S. D. Sampson.  The vertebral column of Majungatholus atopus (Theropoda: Abelisauridae) from the Late Cretaceous of Madagascar. Journal of Vertebrate Paleontology  Vol. 18 (suppl. 3):67A (1998).

2. Sampson, S. D., L. M. Witmer, C. A. Forster, D. W. Krause, P. M. O’Connor, and F. Ravoavy. The evolution and biogeography of Gondwanan theropod dinosaurs: New information from the Late Cretaceous of Madagascar.  Special Abstracts Issue, Gondwana 10: Event Stratigraphy of Gondwana.  Journal of African Earth Sciences 27(1A):167-168 (1998).

1. Sampson, S. D., L. M. Witmer, C. A. Forster, D. W. Krause, and P. M. O’Connor. Discovery of a complete theropod skull from the Late Cretaceous of Madagascar yields new information on Majungasaurus, Majungatholus, and Abelisauridae. Journal of Vertebrate Paleontology. Vol. 17 (suppl. 3):73A (1997).

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