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Burrowing Urchins (Biotic Group)

Component: Biotic

Unique Identifier: 542

Biotic Setting Benthic/Attached Biota
Biotic Class Faunal Bed
Biotic Subclass Soft Sediment Fauna
Biotic Group Burrowing Urchins
Biotic Community Echinocardium Bed
Lovenia cordiformis Bed


Description
Definition Assemblages dominated by burrowing, "irregular" echinoids (e.g., burrowing urchins, heart urchins). These flattened urchins typically live underneath the sediment surface and feed on mud or on particles of detritus.