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Archosaur Diversity Tobias Landberg, Ph.D. Director of Research The Amphibian Foundation tobias@amphibianfoundation.org Archosaur Diversity Archosaur Diversity T=tibia, F=fibula, A=astragalus, C=calcaneum Brusatte, S.L., Benton, M.J., Lloyd,

  1. Archosaur Diversity Tobias Landberg, Ph.D. Director of Research The Amphibian Foundation tobias@amphibianfoundation.org

  2. Archosaur Diversity

  3. Archosaur Diversity T=tibia, F=fibula, A=astragalus, C=calcaneum Brusatte, S.L., Benton, M.J., Lloyd, G.T., Ruta, M. and Wang, S.C., 2010. Macroevolutionary patterns in the evolutionary radiation of archosaurs (Tetrapoda: Diapsida). Earth and Environmental Science Transactions of the Royal Society of Edinburgh , 101 (3/4), p.367.

  4. Archosaur Diversity Brusatte, S.L., Benton, M.J., Lloyd, G.T., Ruta, M. and Wang, S.C., 2010. Macroevolutionary patterns in the evolutionary radiation of archosaurs (Tetrapoda: Diapsida). Earth and Environmental Science Transactions of the Royal Society of Edinburgh , 101 (3/4), p.367.

  5. Archosaur Diversity The reptilian idea of fun Is to bask all day in the sun A physiological barrier Discovered by Carrier Says they can’t breathe when they run -R. Cowen Brocklehurst, R.J., Schachner, E.R., Codd, J.R. and Sellers, W.I., 2020. Respiratory evolution in archosaurs. Phil.Transactions of the Royal Society B , 375 (1793), p.20190140. Carrier, D.R., 1987. The evolution of locomotor stamina in tetrapods: circumventing a mechanical constraint. Paleobiology , pp.326-341.

  6. Archosaur Diversity Archosaur Diversity Illustration Credit: Eleanor Lutz, See also https://www.youtube.com/watch?v=kWMmyVu1ueY

  7. Archosaur Diversity Archosaur Diversity Illustration Credit: Eleanor Lutz, See also https://www.youtube.com/watch?v=kWMmyVu1ueY Brocklehurst, R.J., Moritz, S., Codd, J., Sellers, W.I. and Brainerd, E.L., 2017. Rib kinematics during lung ventilation in the American alligator (Alligator mississippiensis): an XROMM analysis. Journal of Experimental Biology , 220 (17), pp.3181-3190.

  8. Archosaur Diversity Brocklehurst, R.J., Moritz, S., Codd, J., Sellers, W.I. and Brainerd, E.L., 2017. Rib kinematics during lung ventilation in the American alligator (Alligator mississippiensis): an XROMM analysis. Journal of Experimental Biology , 220 (17), pp.3181-3190.

  9. Archosaur Diversity O'Connor, P .M. and Claessens, L.P ., 2005. Basic avian pulmonary design and flow-through ventilation in non-avian theropod dinosaurs. Nature , 436 (7048), pp.253-256. Claessens, L.P ., O'Connor, P .M. and Unwin, D.M., 2009. Respiratory evolution facilitated the origin of pterosaur flight and aerial gigantism. PloS one , 4 (2), p.e4497.

  10. Archosaur Diversity Benson, R. B. J., Butler, R. J., Carrano, M. T., & O’Connor, P . M. (2011). Air-filled postcranial bones in theropod dinosaurs: physiological implications and the “reptile”-bird transition. Biological Reviews, 87(1), 168–193.

  11. Archosaur Diversity Dial, K.P ., 2003. Wing-assisted incline running and the evolution of flight. Science , 299 (5605), pp.402-404.

  12. Archosaur Diversity Dial, K.P ., 2003. Wing-assisted incline running and the evolution of flight. Science , 299 (5605), pp.402-404. Dr. Thomas R. Holtz, Jr.

  13. Archosaur Diversity Dial, K.P ., 2003. Wing-assisted incline running and the evolution of flight. Science , 299 (5605), pp.402-404. Dr. Thomas R. Holtz, Jr.

  14. Archosaur Diversity Dial, K.P ., 2003. Wing-assisted incline running and the evolution of flight. Science , 299 (5605), pp.402-404. Dr. Thomas R. Holtz, Jr.

  15. Archosaur Diversity

  16. Archosaur Diversity Dial, K.P ., 2003. Wing-assisted incline running and the evolution of flight. Science , 299 (5605), pp.402-404. Dr. Thomas R. Holtz, Jr.

  17. Archosaur Diversity Dial, K.P ., 2003. Wing-assisted incline running and the evolution of flight. Science , 299 (5605), pp.402-404. Dr. Thomas R. Holtz, Jr.

  18. Archosaur Diversity Chen, P .J., Dong, Z.M. and Zhen, S.N., 1998. An exceptionally well-preserved theropod dinosaur from the Yixian Formation of China. Nature , 391 (6663), pp.147-152. Kurochkin, E.N. and Bogdanovich, I.A., 2008. On the origin of avian flight: compromise and system approaches. Biology Bulletin , 35 (1), pp.1-11.

  19. Archosaur Diversity Perrichot, V., Marion, L., Néraudeau, D., Vullo, R. and Tafforeau, P ., 2008. The early evolution of feathers: fossil evidence from Cretaceous amber of France. Proceedings of the Royal Society B: Biological Sciences , 275 (1639), pp.1197-1202.

  20. Archosaur Diversity Brusatte, S.L., O’Connor, J.K. and Jarvis, E.D., 2015. The origin and diversification of birds. Current Biology , 25 (19), pp.R888-R898.

  21. Archosaur Diversity Dial, K.P ., 2003. Wing-assisted incline running and the evolution of flight. Science , 299 (5605), pp.402-404.

  22. Archosaur Diversity Dial, K.P ., 2003. Wing-assisted incline running and the evolution of flight. Science , 299 (5605), pp.402-404.

  23. Archosaur Diversity

  24. Archosaur Diversity Prum, R.O., Berv, J.S., Dornburg, A., Field, D.J., Townsend, J.P ., Lemmon, E.M. and Lemmon, A.R., 2015. A comprehensive phylogeny of birds (Aves) using targeted next-generation DNA sequencing. Nature , 526 (7574), pp.569-573.

  25. Archosaur Diversity Prum, R.O., Berv, J.S., Dornburg, A., Field, D.J., Townsend, J.P ., Lemmon, E.M. and Lemmon, A.R., 2015. A comprehensive phylogeny of birds (Aves) using targeted next-generation DNA sequencing. Nature , 526 (7574), pp.569-573.

  26. Archosaur Diversity Pigot, A.L., Sheard, C., Miller, E.T., Bregman, T.P ., Freeman, B.G., Roll, U., Seddon, N., Trisos, C.H., Weeks, B.C. and Tobias, J.A., 2020. Macroevolutionary convergence connects morphological form to ecological function in birds. Nature Ecology & Evolution , 4 (2), pp.230-239.

  27. Archosaur Diversity Pigot, A.L., Sheard, C., Miller, E.T., Bregman, T.P ., Freeman, B.G., Roll, U., Seddon, N., Trisos, C.H., Weeks, B.C. and Tobias, J.A., 2020. Macroevolutionary convergence connects morphological form to ecological function in birds. Nature Ecology & Evolution , 4 (2), pp.230-239.

  28. Archosaur Diversity Pigot, A.L., Sheard, C., Miller, E.T., Bregman, T.P ., Freeman, B.G., Roll, U., Seddon, N., Trisos, C.H., Weeks, B.C. and Tobias, J.A., 2020. Macroevolutionary convergence connects morphological form to ecological function in birds. Nature Ecology & Evolution , 4 (2), pp.230-239.

  29. Archosaur Diversity T=tibia, F=fibula, A=astragalus, C=calcaneum Brusatte, S.L., Benton, M.J., Lloyd, G.T., Ruta, M. and Wang, S.C., 2010. Macroevolutionary patterns in the evolutionary radiation of archosaurs (Tetrapoda: Diapsida). Earth and Environmental Science Transactions of the Royal Society of Edinburgh , 101 (3/4), p.367.

  30. Archosaur Diversity

  31. Archosaur Diversity

  32. Archosaur Diversity

  33. Archosaur Diversity Fish, F. E., S. A. Bostic, et al. (2007). "Death roll of the alligator: mechanics of twist feeding in water." Journal of Experimental Biology 210(16): 2811-2818. Brochu, C. A. (2000). "Phylogenetic relationships and divergence timing of Crocodylus based on morphology and the fossil record." Copeia(3): 657-673.

  34. Archosaur Diversity

  35. Archosaur Diversity

  36. Archosaur Diversity

  37. Archosaur Diversity

  38. Archosaur Diversity Senter, P ., 2008. Homology between and antiquity of stereotyped communicatory behaviors of crocodilians. Journal of Herpetology , 42 (2), pp.354-360.

  39. Archosaur Diversity Murray, C.M., Crother, B.I. and Doody, J.S., 2020. The evolution of crocodilian nesting ecology and behavior. Ecology and Evolution , 10 (1), pp.131-149.

  40. Archosaur Diversity Lang, J.W. and Andrews, H.V., 1994. Temperature - dependent sex determination in crocodilians. Journal of Experimental Zoology , 270 (1), pp.28-44.

  41. Archosaur Diversity Finger, J.W. and Gogal, R.M., 2013. Endocrine-disrupting chemical exposure and the American alligator: a review of the potential role of environmental estrogens on the immune system of a top trophic carnivore. Archives of environmental contamination and toxicology , 65 (4), pp.704-714.

  42. Archosaur Diversity Alligator sinensis Chinese Alligator n=~75 critically endangered

  43. Archosaur Diversity Crocodylus intermedius Orinoco Crocodile n=~190 critically endangered

  44. Archosaur Diversity Crocodylus mindorensis Philippine Crocodile n=~115 critically endangered

  45. Archosaur Diversity Crocodylus rhombifer Cuban Crocodile n=~750 critically endangered

  46. Archosaur Diversity Crocodylus siamensis Saimese Crocodile n=~750 critically endangered

  47. Archosaur Diversity Gavialis gangeticus Gharial n=~650 critically endangered

  48. Archosaur Diversity Tomistoma schlegelii False Gharial n=~6500 endangered

  49. Archosaur Diversity American Alligator: Endangered species 1967-1987

  50. Archosaur Diversity American Alligator: Endangered species 1967-1987

  51. Archosaur Diversity American Alligator: Endangered species 1967-1987

  52. Archosaur Diversity American Alligator: Endangered species 1967-1987

  53. Archosaur Diversity Dinets, V., Brueggen, J.C. and Brueggen, J.D., 2015. Crocodilians use tools for hunting. Ethology Ecology & Evolution, 27(1), pp.74-78.

  54. Thank you! Tobias Landberg, Ph.D. Director of Research and the Conservation Research Bridge Program http://bridge.amphibianfoundation.org/ @sciencethegap Questions? Comments?

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