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Holectypidae

Holectypidae

Overview

Holectypidae Lambert, 1900

Common Name: Sea urchin

Extant/Extinct

Key morphological features: Test is circular to globular in shape.

        SIZE:

Paleoecology:

        MOBILITY: Mobile

        FEEDING MODE: Detritivore

        HABITAT: Semi-infaunal

Sources:

Fell, H. B. and Pawson, L. P., 1966. Systematic Descriptions, in R. C. Moore ed., Treatise on Invertebrate Paleontology, Part U, Echinodermata 3, Volume 2. The University of Kansas and Geological Society of America. 695 pp.


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