A fossil insect from the lower Permian of the Grand Canyon
By: by Frank M. Carpenter
Series: Proceedings of the United States National Museum -- v. 71, no. 23
Publisher: U. S. Govt. print. off.
Published: 1927
Place of publication: Washington
Language: eng
Subjects: Insects, Fossil; Paleontology -- Permian; Paleontology -- Grand Canyon
Notes: Cover-title

"References": p. 4