Subtribe Phyllacanthina Smith and Wright 1989 (pencil urchin)
Echinoidea - Cidaroida - Cidaridae
Parent taxon: Cidaridae according to A. Kroh and A. B. Smith 2010
See also Smith 1995
Sister taxa: Centrocidaris, Cidarinae, Cidarini, Cidaris, Dorocidaris, Goniocidarinae, Hesperocidaris, Prionocidaris, Rhabdocidarinae, Stereocidarinae, Stylocidarinae, Triassicidaris
Subtaxa: none
Ecology: slow-moving low-level epifaunal grazer-omnivore
Distribution: there are no occurrences of Phyllacanthina in the database