The fauna of the Lower Cambrian or Olenellus zone
By: by Charles Doolittle Walcott...
Publisher: Gov't Print. Off.
Published: 1890
Place of publication: Washington
Language: eng
Number of pages: 774
Subjects: Paleontology
Notes: Caption title.

Extract from the 10th annual report of the director of the U. S. Geological Survey, 1888-89, pt. I.

"List by authors of books and papers containing the more important references to the rocks and fossils of the Olenellus zone": p. 516-524.