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UNIVERSITY OF COLORADO STUDIES 



Callista deweyt M. & H. 

 Cardtum speciosum M. & H. 

 Glycimeris bertJtoudi White 

 Inoceramus oblongus Meek 

 Inoceramus vanuxemi M. & H. 

 Inoceramus sagensis Owen 

 Inoceramus barabini Morton 

 Ostrea patina M. & H. 

 Ostrea pellucida M. & H. 

 Pinna lakesi White • 

 Pteria linguiformts E. & S. 

 Pteria nebrascana E. & S. 

 Thracia gracilis M. & H. 



Volsella meekii E. & S. 

 Anchura americana E. & S. 

 Anchura haydeni White 

 Anisomyon borealis Morton 

 Anisomyon centrale Meek 

 Anisomyon patelliformis M. &. H. 

 Capulus sp. 

 Gyrodes sp. 



Margarita nebrascensis M. & H. 

 Bacuhtes compressus Say 

 Baculites ovatus Say 

 Placenticeras whitfieldi Hyatt 

 Placenttceras intercalare M. &. H. 

 Scaphites nodosus Owen 



The Crow Creek fossils collected have been fully studied except a 

 good-sized box of Corbicula, which may afford some species not yet 

 identified. With this exception the species found are as follows: 



Anomia micronema Meek Ostrea glabra M. & H. 



. Corbicula berthoudi White Bulinus disjunctus White 



Corbicula cardiniaejormis White Campeloma multilineata M. & H. 



Corbicula cleburni White Goniobasis gracilenta Meek 



Corbicula jracta Meek Goniobasis tenuicarinata M. & H. 



Corbicula macropistha White Melania wyomingensis Meek 



Corbicula obesa White Physa sp. 



Corbula subtrigonalis M. & H. Tulotoma thompsoni White 



3. A New Plant (Ficus) from the Fox Hills Cretaceous 



By T. D. a . COCKERELL 



Among the valuable materials brought home by the expedition is a 

 large fossil leaf, with portions of others, from the Fox Hills Cretaceous. 

 This was found by Judge Henderson near the mouth of Thompson 

 Creek, west of Evans, in the upper part of the beds there exposed. 

 There is no doubt about the age of the rock containing the vegetable 

 remains, as Cardium speciosum, a characteristic Fox Hills shell, was 

 found above it. The specimen is of peculiar interest, as no seed-plant 

 has hitherto been described from these beds in Colorado. 



Ficus sp. nov. 



Represented by the upper portion of a leaf lacking the apex, and the 

 side of the lower portion of another. Leaf large, 12 cm. in diameter, 



