Descriptions of new species of fossils
Subtitle: From the Devonian rocks of Iowa; with a preliminary note on the formations.
By: By James Hall and R.P. Whitfield.
Contributors: Whitfield, Robert Parr, 1828-1910, joint author.
Publisher: Weed, Parsons & Company, printers
Published: 1872
Place of publication: Albany
Language: eng
Number of pages: 21
Subjects: Paleontology -- Devonian.; Paleontology -- Iowa.
Notes: Published July, 1872, in advance of the 23rd report on the state cabinet.