Pojeta, John. <br/><br/>
The paleontology of rostroconch mollusks and the early history of the phylum Mollusca :  an analysis of the functional morphology, taphonomy, stratigraphic ranges, phylogenetic relationships, and taxonomic variability of rostroconch mollusks and the evolutionary history of other early mollusks / 
by John Pojeta, Jr., and Bruce Runnegar 
 - Washington :  U.S. Govt. Print. Off.,  1976 
 - iv, 88 p., 54 leaves of plates :  ill. ;  29 cm. 
 - Geological Survey professional paper ;  968 .
<br/><br/> Includes index 
<br/><br/>Bibliography: p. 78-84 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Rostroconchia<br/>Mollusks--Evolution<br/>Paleontology--Paleozoic
<br/><br/><label>Dewey Class. No.: </label>564