Romer, Alfred Sherwood, 1894- <br/><br/>
Notes and comments on vertebrate paleontology / 
Alfred Sherwood Romer. 
 - Chicago, Ill. :  University of Chicago Press,  1968. 
 - viii, 304 p. :  ill. ;  23 cm. 
<br/><br/>p. 254-281. 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Vertebrates--Anatomy.<br/> Vertebrates, Fossil.