Odocoileus hemionus
© Roger Laurin
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Parotosaurus
© 2000 D. Serrette, MNHN
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Hoplomyzon atrizona
© 1995 John P. Friel
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Neurotrichus gibbsii (Talpidae)
© 1999 California Academy of Sciences
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Hesperornis
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Western Palearctic water frogs
© Peter Beerli
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Auliscomys pictus
© Scott J. Steppan
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Apteronotus albifrons
© 1995 Mike Lannoo
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Brachycephalines
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Edmontonia
© 2000 Kenneth Carpenter
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Western Palearctic water frogs
© Peter Beerli
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Aspidoras
© 1996 Roberto E. Reis
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Synapsida
© 1996 Michel Laurin
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Sigmodon hispidus
© 1996 R. H. Baker
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Neotomys ebriosus
© Scott J. Steppan
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Ariekanerpeton sigalovi
© 1996 Michel Laurin
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Auliscomys pictus
© Scott J. Steppan
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Rana perezi
© 1997 Dirk Schmeller
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Rana lessonae
© 1995 Hansjürg Hotz
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Euneomys chinchilloides
© Scott J. Steppan
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Occidozyga
© 1995 David Cannatella
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Utegenia shpinari
© 1996 Michel Laurin
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Galenomys garleppi
© Scott J. Steppan
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Lepus americanus
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Irenomys tarsalis
© Scott J. Steppan
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Chinchillula sahamae
© Scott J. Steppan
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Rhinolophoidea
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Amniota
© 1996 Michel Laurin
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Physalaemus pustulatus
© 1996 Adao Cardoso
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Euneomys chinchilloides
© Scott J. Steppan
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Loxodonta africana
© 2000 Greg and Marybeth Dimijian
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Erythrocebus patas
© 2001 California Academy of Sciences
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Euoplocephalus
© 2000 Kenneth Carpenter
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Galenomys garleppi
© Scott J. Steppan
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Ctenolucius hujeta
© John G. Lundberg
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Ambystoma opacum
© 1996 Sorin Damian
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Irenomys tarsalis
© Scott J. Steppan
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Physalaemus cuvieri
© 1996 Adao Cardoso
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Euneomys chinchilloides
© Scott J. Steppan
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Necturus alabamensis
© 1996 Greg Sievert
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