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Scutella (Echinarachnius) Gray 1825 (sand dollar)

Echinoidea - Clypeasteroida - Echinarachniidae

PaleoDB taxon number: 356186

Alternative spellings: Echinarachinus, Echinarachnius

Full reference: J. E. Gray. 1825. An attempt to divide the Echinida, or Sea Eggs, into natural families. Annals of Philosophy, new series 10:423-431

Parent taxon: Echinarachniidae according to C. D. Wagner 1974

Sister taxa: Astrodapsis, Kewia, Nipponaster, Scutellaster, Tenuirachnius, Vaquerosella

Subtaxa: Echinarachnius alaskense, Echinarachnius andersoni, Echinarachnius astrodapsoides, Echinarachnius merriami, Echinarachnius newcombei, Echinarachnius norrisi, Echinarachnius parma, Echinarachnius plafkeri, Echinarachnius ungaensis

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Ecology: slow-moving semi-infaunal detritivore