A Silurian worm and associated fauna /

Bibliographic Details
Main Author:	Roy, Sharat Kumar, 1897-1962
Other Authors:	Croneis, Carey, 1901-1972
Format:	Book
Language:	English
Published:	Chicago, [publisher not identified] ; 1931.
Series:	Publication (Field Museum of Natural History) ; 298. Fieldiana. Geology ; v. 4, no. 7.
Subjects:	Lecthaylus gregarius. Worms, Fossil. Paleontology > Silurian.

Description
Item Description:	Each plate accompanied by guard sheet with descriptive letterpress.
Physical Description:	pages 229-247 : plate XLII-XLV. ; 25 cm.