Descriptions of new species of blastoidea from the palezoic rocks of the western states : with some observations on the structure of the summit of the genus Pentremites /

Main Author: Shumard, B. F.
Format: Book
Language:English
Published: [s.l.]: [s.n.], [19--]
Subjects:
Item Description:Reprint from: Acad. Sci. St. Louis, vol. I., No. 2
Physical Description:12 p. : ill., tabs ; 22 cm.