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Holasteridae

Holasteridae

Overview

Holasteridae Pictet, 1857

Common Name: Sea urchin

Extant/Extinct

Key morphological features: Test has a slight heart shape.

        SIZE:

Paleoecology:

        MOBILITY: Mobile

        FEEDING MODE: Detritovore

        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 Holasteridae present in the Cretaceous of the Western Interior Seaway