Cobban, William A. <br/><br/>
Molluscan record from Mid-Cretaceous borehole in Weston Country, Wyoming 

 - Washington, D.C.  U.S. Geological Survey  1984 
 - pp. 1-24  láms. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>CRETACEO<br/>MOLLUSCA
<br/><br/><label>Subjects--Geographic Terms: </label><br/>ESTADOS UNIDOS