CARVALHO, Marcelo R. de <br/><br/>
Freshwater stingrays of the green river formstion of Wyoming (early eocene), with the description of a new genus and species and an analysis of its phylogenetic ... / 
Marcelo R. de Carvalho, John G. Maisey, Lance Grande. 
 -- New York :   American Museum of Natural History,   2004 
 - 136 p.  il. -- 
 (Bulletin of the American Museum of Natural History, ISSN 0003-0090  ; 284).
<br/><br/><label>Subjects--Topical Terms: </label><br/>Condrósteos fósiles - Wyoming - Eoceno
<br/><br/><label>Universal Decimal Class. No.: </label>567.42(787)"6231"