TY  - BOOK
AU  - Jackson,Robert Tracy
TI  - Fossil Echini of the Panama Canal Zone and Costa Rica
T2  - Smithsonian institution. United States National museum. Bulletin 103 [pt.5]
AV  - Q11 .U6 no. 163, pt. 5
PY  - 1918///
CY  - Washington
PB  - Govt. print. off.
KW  - Sea urchins, Fossil
KW  - Paleontology
KW  - Panama
KW  - Costa Rica
N1  - 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
ER  -