New uncoiled gastropods from the Middle Devonian of Michigan and Manitoba
Series: Contributions from the Museum of Paleontology, University of Michigan -- v. 7, no. 7; Contributions from the Museum of Paleontology -- v. 7, no. 7.
Publisher: University of Michigan Press
Published: 1949
Place of publication: Ann Arbor
Language: eng
Number of pages: 122
Subjects: Mastigospira; Paleontology
Notes: Cover title.

"Literature cited": p. 121.