The late cretaceous cephalopod Haresiceras Reeside and its possible origin Haresiceras, which seems to have been derived from the scaphitid stock of ammonites, provides a means of correlating thin units of strata in the Western Interior region

Bibliographische Detailangaben

1. Verfasser:	Cobban, William Aubrey (VerfasserIn)
Format:	UnknownFormat
Sprache:	eng
Veröffentlicht:	Washington, D.C. U.S. Gov. Print. Off. 1964
Schriftenreihe:	Shorter contributions to general geology I
Schlagworte:	Ammoniten > Oberkreide
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