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Family Echinarachniidae Lambert and Thiéry 1914 (sand dollar)

Echinoidea - Clypeasteroida

PaleoDB taxon number: 151230

Full reference: J. Lambert and P. Thiéry. 1914. Essai de nomenclature Raisonnée des échinides. L. Ferrière, Chaumont (4)241-320

Parent taxon: Scutelliformes according to A. Kroh and A. B. Smith 2010

Sister taxa: Abertellidae, Astriclypeidae, Dendrasteridae, Eoscutellidae, Mellitidae, Monophorasteridae, Protoscutellidae, Rotulidae, Scutasteridae, Scutellidae, Taiwanasteridae

Subtaxa: Astrodapsis, Echinarachnius, Kewia, Nipponaster, Remondella, Tenuirachnius, Vaquerosella

View classification

Type: Echinarachnius

Ecology: slow-moving semi-infaunal detritivore