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Hemicidaris Agassiz 1838 (sea urchin)

Echinoidea - Euechinoidea - Hemicidaridae

PaleoDB taxon number: 32916

Full reference: J.L.R. Agassiz. 1838. Prodromus of a monograph of the Radiata and Echinodermata. Annals and Magazine of Natural History 1:30-449

Parent taxon: Hemicidaridae according to H. B. Fell and D. L. Pawson 1966

Sister taxa: Asterocidaris, Cidaropsis, Eurypneustes, Gymnocidaris, Hemitiaris, Hessotiara, Plesiocidaris, Pseudocidaris, Sphaerotiaris

Subtaxa: Hemicidaris abyssinica, Hemicidaris alpina, Hemicidaris confluens, Hemicidaris granulosa, Hemicidaris icaunensis, Hemicidaris intermedia

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Ecology: epifaunal grazer-deposit feeder