Evolution of the echinoid genus astrodapsis /.
Hall, Clarence A.
Evolution of the echinoid genus astrodapsis /. by Clarence A. Hall. - Berkeley ; Los Angeles : University of California Press, 1960. - 281-308 p. illus. ; 26 cm. - University of California publications in geological sciences, v. 40, no. 2 .
Astrodapsis--California.
Evolution of the echinoid genus astrodapsis /. by Clarence A. Hall. - Berkeley ; Los Angeles : University of California Press, 1960. - 281-308 p. illus. ; 26 cm. - University of California publications in geological sciences, v. 40, no. 2 .
Astrodapsis--California.