The Crinoidea flexibilia (with an atlas of A.B.C. and 76 plates)
By: by Frank Springer
Contributors: Smithsonian Institution
Series: Publication 2501; Publication (Smithsonian Institution) -- 2501.
Publisher: Smithsonian institution
Published: 1920
Place of publication: City of Washington
Language: eng
Number of pages: 486
Subjects: Fossil Crinoidea
Notes: At head of title: Smithsonian institution.

Bibliography: v. [1], p. 455-466.