Mesozoic and Cenozoic Echinodermata of the United States
By: by William Bullock Clark and Mayville W. Twitchell.
Contributors: Twitchell, Mayville William, 1868-; Geological Survey (U.S.)
Series: Monographs of the United States Geological Survey -- v. 54
Publisher: U.S. Geological Survey
Published: 1915
Place of publication: Washington
Language: eng
Number of pages: 341
Subjects: Echinodermata, Fossil.
Notes: Bibliography: p. 14-20.