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†family Hemicidaridae Wright 1857 (sea urchin)

Echinoidea - Euechinoidea

PaleoDB taxon number: 168412

Full reference: T. W. Wright. 1857. Monograph on the British fossil Echinodermata of the Oolitic Formations. Volume 1: the Echinoidea. Monographs of the Palaeontographical Society 1-154

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

Sister taxa: Calycina, Irregularia, Orthopsidae, Pseudodiadematidae

Subtaxa: Asterocidaris, Cidaropsis, Eurypneustes, Gymnocidaris, Hemicidaris, Hemitiaris, Hessotiara, Plesiocidaris, Pseudocidaris, Sphaerotiaris

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Type: Hemicidaris

Ecology: epifaunal grazer-deposit feeder