Note on a very fine example of Helicoceras stevonsoni preserving the outer chamber. Bulletin of the AMNH ; v. 14, article 16

By

Whitfield, R. P. (Robert Parr), 1828-1910

Type

Book

Publication info

1901

Language

English

Identifiers

Wikidata: https://www.wikidata.org/entity/Q51511231