Silicified Middle Ordovician trilobites /

Bibliographic Details
Main Author:	Whittington, H. B. (Harry Blackmore)
Other Authors:	Evitt, W. R.
Format:	Book
Language:	English
Published:	[New York] : Geological Society of America, 1953.
Series:	Memoir (Geological Society of America) ; 59.
Subjects:	Trilobites. Paleontology > Ordovician.

Description
Physical Description:	137 pages : illustrations
Bibliography:	Bibliography: pages 97-100.