Centrolenidae
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Cercopithecus aethiops
© 2000 Greg and Marybeth Dimijian
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Lamprometra palmata
© 1997 Charles G. Messing
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Diapsida
© 2000 Michel Laurin
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Acanthostega gunnari
© 1997 Eliot Goldfinger
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Marmota flaviventris
© 2000 Scott J. Steppan
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Temnospondyli
© 2000 Jean-Sébastien Steyer and Michel Laurin
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Andinomys edax
© Scott J. Steppan
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Heterostraci
© Philippe Janvier
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Hylaeosaurus
© 2000 Kenneth Carpenter
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Saimiri oerstedi
© 2000 Greg and Marybeth Dimijian
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Neotomys ebriosus
© Scott J. Steppan
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Ranidae
© Peter Beerli
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Irenomys tarsalis
© Scott J. Steppan
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Rana cerigensis
© Peter Beerli
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Pipidae
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Ichthyostega
© 1997 University Museum of Zoology, Cambridge
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Plethodon websteri
© 1996 Dr. Robert S. Simmons
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Siren intermedia
© 1996 Greg Sievert
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Macropus giganteus
© 1995 Greg and Marybeth Dimijian
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Phyllotis darwini
© Scott J. Steppan
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Agalychnis annae
© 1995 David Cannatella
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Phyllotini
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Hiodon consteniorum
© 1998 Guo-Qing Li and Mark V. H. Wilson
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Neotomys ebriosus lateral view of mandible
© Scott J. Steppan
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Loxodontomys micropus
© Scott J. Steppan
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Testudines
© Eugene S. Gaffney
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Acanthostega gunnari
© Jennifer A. Clack
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Hyalinobatrachium fleischmanni
© 1995 David Cannatella
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Strongylocentrotus purpuratus
© 1997 Katja Schulz
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Osteoglossum, Phareodus
© 1998 Guo-Qing Li and Mark V. H. Wilson
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Kassina maculata
© David Cannatella
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Alioramus remotus
© 1995 Tracy Lee Ford
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Galenomys garleppi
© Scott J. Steppan
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Onychocrinus exsculptus
© 1997 William I. Ausich
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Bradypus variegatus
© 2000 Greg and Marybeth Dimijian
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Colobus
© 1999 Greg and Marybeth Dimijian
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Phaethon rubricauda
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Ornithorhynchus anatinus
© 2001 California Academy of Sciences
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Diapsida
© 2000 Michel Laurin
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