Studies of evolution in the genus Spirifer
By: [by] Carroll Lane Fenton.
Series: Publications of the Wagner free institute of science,; vol. 11
Publisher: Wagner free institute of science
Published: 1931
Place of publication: Philadelphia
Language: eng
Number of pages: 436
Subjects: Spiriferidae, Fossil.; Paleontology -- Devonian.; Paleontology -- Iowa.
Notes: Bibliography: p. 117-125.
Descriptive letterpress on versos facing the plates.
Spirifer from the Devonian Hackberry formation of Iowa.