Fossil Echini of the Panama Canal Zone and Costa Rica
By: By Robert Tracy Jackson.
Series: Smithsonian institution. United States National museum. Bulletin 103 [pt.5]
Publisher: Govt. print. off.
Published: 1918
Place of publication: Washington
Language: eng
Number of pages: 116
Subjects: Sea urchins, Fossil.; Paleontology -- Panama.; Paleontology -- Costa Rica.
Notes: At head of title: Contributions to the geology and paleontology of the Canal Zone, Panama, and geologically related areas in Central America and the West Indies.
"Extract from Bulletin 103, pages 103-116, with plates 46-52."
Stamped on t.-p.: Issued Feb. 19, 1919.
"Essentially a reprint of my paper bearing the same title published in the Proceedings of the United States National museum, volume 53, pages 489-501 ... September 24, 1917."--Introd.