A new find of discosauriscid seymouriamorph from the lower permian of boskovice basin in moravia (The Czech Republic)

Abstract

A preliminary description of a new specimen belonging to the family Discosauriscidae (Seymouriamorpha), Discosauriscidae indet., is presented in this paper. The specimen is partially prepared; only its skull was chemically removed from the matrix and accessible for the study in dorsal aspect. The skull is about 40 mm long and three-dimensionally preserved. The skull differs from all other discosauriscids in three autapomorphic features: 1) distinct ornamentation of the skull roof bones consisting of strongly developed ridges and deep grooves; 2) intertemporal larger than the supratemporal; and 3) anterolateral margin of intertemporal almost straight. These features strongly indicate that the specimen represents a new taxon. However, the taxonomy of this specimen will be evaluated only after its complete preparation.