Llistrofus [SEP] parent taxon
Llistrofus
Llistrofus is an extinct genus of early Permian microsaur within the family Hapsidopareiidae that is known from Oklahoma.
History of study.
"Llistrofus" was described by Canadian paleontologists Robert Carroll and Pamela Gaskill in 1978. The genus name derives from the historic name of the Richards Spur locality from which material of "Llistrofus" was collected, Fort Sill (which remains an active military base near the locality), while the species name, "L. pricei", is given for the Brazilian paleontologist Llewellyn Price. The
holotype of this taxon is currently reposited at the Field Museum of Natural History. The skull of the holotype was reappraised by Bolt & Rieppel in 2009. New material from Richards Spur was described by Gee et al. (2019).
Anatomy.
"Llistrofus" is readily identified by the presence of a large temporal emargination, a feature shared with "Hapsidopareion lepton" that unites the Hapsidopareiidae. Carroll & Gaskill (1978) differentiated "Llistrofus" from "Hapsidopareion" by four features: (1) postorbital contacting