Tarbosaurus bataar
© 1996 Thomas R. Holtz, Jr.
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Ichthyostega
© 1997 University Museum of Zoology, Cambridge.
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Chiroptera
© Nancy B. Simmons
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Synapsida
© 1997 Michel Laurin
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Physalaemus kroyeri
© 1996 Adao Cardoso
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Molossus rufus
© 1998 Nancy B. Simmons
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Chinchillula sahamae
© Scott J. Steppan
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Gorgosaurus libratus
© 2000 Thomas R. Holtz, Jr.
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Synapsida
© 1997 Michel Laurin
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Temnospondyli
© 2000 Jean-Sébastien Steyer and Michel Laurin
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Phyllotis darwini
© Scott J. Steppan
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Pipa pipa
© 1995 David Cannatella
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Galenomys garleppi
© Scott J. Steppan
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Homo sapiens
© 1993 Ethan Michelson
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Rhinopomatoidea
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Polycryptodira
© 1996 John Merck
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Gastrophryne olivacea
© 1995 David Cannatella
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Polypedates
© 1995 David Cannatella
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Phyllotis darwini
© Scott J. Steppan
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Gigantolina elongata, Chelodina longicollis
© Klaus Rohde
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Carpodacus mexicanus
© 1997 Geoff Hill
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Physalaemus pustulosus
© 1996 David Cannatella
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Rana lessonae
© 1995 Thomas Uzzell
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Scelidosaurus, Thescelosaurus, Stegosaurus, Euoplocephalus
© 2001 Kenneth Carpenter
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Euneomys chinchilloides
© Scott J. Steppan
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Heleophryne
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Calomys laucha
© Scott J. Steppan
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Eligmodontia typus
© 1997 Oliver Pearson
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Physalaemus olfersii
© 1996 Adao Cardoso
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Rhyacotriton variegatus
© 1996 Kevin de Queiroz
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Limnodynastes salmini
© 1995 David Cannatella
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Calomys laucha
© Scott J. Steppan
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Chinchillula sahamae
© 1997 O. Pearson
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Utegenia shpinari
© 1996 Michel Laurin
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Desmognathus fuscus
© 1996 Greg Sievert
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Gastonia
© 2000 Kenneth Carpenter
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Orycteropus afer
© 2001 California Academy of Sciences
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Pseudis paradoxa
© 1995 David Cannatella
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Calomys laucha
© Scott J. Steppan
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Rana cretensis
© 1995 Peter Beerli
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