Remarks on and descriptions of new fossil Unionidae from the Laramie clays of Montana /

Bibliographic Details
Main Author: Whitfield, R. P (Robert Parr), 1828-1910
Other Authors: Brown, Barnum
Format: Book
Language:English
Published: [New York : Published by order of the Trustees, American Museum of Natural History, 1907]
Series:Bulletin of the American Museum of Natural History ; v. 23, article 26
Subjects:
Description
Item Description:At head of title: Article 26
Date of publication: Aug. 31, 1907. Cf. introd. text to v. 23
Specimens collected by Barnum Brown
This WorldCat-derived record is shareable under Open Data Commons ODC-BY, with attribution to OCLC
Title from caption
"The ... species of Unio included in this article are from the Laramie clays, 130 miles northwest of Miles City, Montana, from a bed located about 180 feet above the Fort Pierre shales, and consequently well above the recognized Cretaceous horizon."
Physical Description:p. 623-628, [5] leaves of plates : ill. ; 24 cm