Middle Cambrian spongiae
By: by Charles D. Walcott.
Series: Smithsonian miscellaneous collections -- v. 67, no. 6; Cambrian geology and paleontology -- 4, no. 6; Publication -- 2580; Publication (Smithsonian Institution) -- 2580.
Publisher: Smithsonian Institution
Published: 1920
Place of publication: City of Washington
Language: eng
Number of pages: 364
Subjects: Sponges, Fossil.
Notes: Includes bibliographical references.