Atlas of invertebrate macrofossils / 
edited by John W. Murray 
 - Harlow :  Longman in collaboration with the Palaeontological Association,  1985 
 - xiii, 241 p. :  ill. ;  30 cm. 
<br/><br/>p. 231-233 
<br/><br/><label>ISBN: </label>0582300991 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Invertebrates, Fossil