by Oliver Perry Hay
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Second bibliography and catalogue of the...
Bibliography and catalogue of the fossil...
The batrachians and reptiles of the Stat...
The fossil turtles of North America
... On the manner of locomotion of the d...
The recognition of Pleistocene faunas
Notice of the occurrence of a Pleistocen...
Paracamelus gigas, Schlosser
Magnetic polarity stratigraphy of the Te...
Giant camels from the Cenozoic of North ...
Revision of the Camelinae (Artiodactyla,...
The gazelle camel, Stenomylus