Key for classification of cystoids.
Series: Contributions from the Museum of Paleontology, the University of Michigan,; v. 18, no. 6
Publisher: Museum of Paleontology, University of Michigan
Published: 1963
Place of publication: Ann Arbor
Language: eng
Number of pages: 116
Subjects: Cystoidea
Notes: Cover title.
"From the Edward Pulteney Wright memorial volume."