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Pachydiscidae

Pachydiscidae

Overview

Common Name: 

Extant/Extinct

Key morphological features: Shells of this group are large, ranging from involute to evolute. Strong ribbing sometimes with extra ornamentation. Suture lines tend to be smaller, narrow, and asymmetric.

        SIZE:

Paleoecology:

        MOBILITY: Mobile (swim)

        FEEDING MODE: Predator

        HABITAT: epifaunal

Sources:

Wright, C. W., 1996. Ammonoidea, in Kaesler, R. L., ed., Treatise on Invertebrate Paleontology, Part L, Mollusca 4 Revised, Volume 4. The University of Kansas and Geological Society of America. 362 pp.


Genera of Pachydiscidae present in the Cretaceous of the Western Interior Seaway