Ophiuroidea - Phrynophiurida - Onychasteridae

PaleoDB taxon number: 129683

Alternative combination: Protaster barrisi

Full reference: J. Hall. 1861. Descriptions of new species of crinoidea; from investigations of the Iowa Geological Survey. Preliminary notice 1-18

Belongs to Onychaster according to W. K. Spencer 1927

Sister taxa: Onychaster asper, Onychaster flexibilis, Onychaster flexilis, Onychaster strimplei, Onychaster velbertensis

Type specimen: Syntypes MCZ 108083, 108085

Ecology: epifaunal suspension feeder