Echinoidea - Camarodonta - Echinidae

Alternative spelling: Hipponoe

Parent taxon: Tripneustes according to W. S. W. Kew 1920

See also Kew 1914

Sister taxa: Tripneustes depresss, Tripneustes esculenta, Tripneustes gratilla, Tripneustes magnificus, Tripneustes pregratilla

Subtaxa: Tripneustes (Hipponoe) californicus

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Ecology: epifaunal grazer-deposit feeder

Distribution: found only at UC 2064 - Coyote Mountain [Imperial Fm] (Pliocene of California)

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