Litophragmatoceras incomptum gen. et sp.nov. (Cretaceous Ammonoidea) , a cryptic micromorph from the Upper Cenomanian of Arizona

Litophragmatoceras incomptum gen. et sp.nov. is a small dimorphic planulate ammonite from the Upper Cenomanian Metoicoceras mosbyense Zone of Arizona in which microconchs are adult at as little as 5 mm diameter and macroconchs at 23 mm diameter or less. The quinquelobate suture is very simple, with...

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Bibliographic Details
Main Authors: Kennedy, W, Cobban, W
Format: Journal article
Language:English
Published: 1988