†Eriaster ibexensis Blake and Guensburg 2005 (sea star)
Full reference: D. B. Blake and T. E. Guensburg. 2005. Implications of a new Early Ordovician asteroid (Echinodermata) for the phylogeny of asterozoans. Journal of Paleontology 79(2):395-399
Belongs to Eriaster according to D. B. Blake and T. E. Guensburg 2005
Sister taxa: none
Type specimen: FMNH PE 52741. Its type locality is trilobite zone G-2, Hintze C section, Ibex area, which is in a Tremadoc shallow subtidal limestone in the Fillmore Formation of Utah.
Ecology: slow-moving low-level epifaunal detritivore