Evolution of the echinoid genus Astrodapsis / by Clarence A. Hall, Jr
- publisher: Berkeley : University of California Press
- creator: Hall, Clarence A
- Keyword: Astrodapsis. Paleontology California.
- years: 1962.
- pages: 47-179 p., 44 . of plates :
- class: QE1
- notes: One folded map and three folded . of ill. in pocket.
- download: pdf file