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Fossil collection records
Fossil organisms
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Classifications of taxa in groups
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Classification of Leidy 1860
G. †
Lepidotus
Agassiz 1832
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†
Lepidotus occidentalis
Leidy 1856
Or.
Chelonia
Latreille 1800 [turtle]
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G. †
Compsemys
Leidy 1856
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Compsemys victus
Leidy 1856
G.
Emys
Dumeril 1806 [pond turtle]
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Emys obscurus
Leidy 1856
G.
Trionyx
Geoffroy Saint-Hilaire 1809
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Trionyx foveatus
Leidy 1856
Or.
Sauria
MacCartney 1802
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G.
Crocodilus
Laurenti 1768 [crocodile]
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Crocodilus humilis
Leidy 1856
G. †
Deinodon
Leidy 1856
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Deinodon horridus
Leidy 1856
G. †
Hadrosaurus
Leidy 1858
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Hadrosaurus foulkii
Leidy 1858
G. †
Palaeoscincus
Leidy 1856
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Palaeoscincus costatus
Leidy 1856
G. †
Thespesius
Leidy 1856
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Thespesius occidentalis
Leidy 1856
G. †
Trachodon
Leidy 1856
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Trachodon mirabilis
Leidy 1856
G. †
Troodon
Leidy 1856
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Troodon formosus
Leidy 1856
Or.
Sirenia
Illiger 1811 [sirenian]
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G. †
Ischyrotherium
Leidy 1856
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Ischyrotherium antiquum
Leidy 1856