Note on a very fine example of Helicoceras Stevonsoni preserving the outer chamber.
Title:
Note on a very fine example of Helicoceras Stevonsoni preserving the outer chamber.
Author:
Whitfield, R. P. (Robert Parr), 1828-1910.
Personal Author:
Publication Information:
New York : By Order of the Trustees of the American Museum of Natural History, 1901.
Physical Description:
pages 219. 25 cm.
General Note:
Plates XXIX-XXX.
Language:
English
Format :
Book