Text-fig. 2. Discosauriscus pulcherrimus (FRITSCH, 1880). a: specimen G 151, cranial and postcranial skeleton (for details of postcranial skeleton, see Text-fig. 4) with highlighted virtual 3D models of postparietal and jugal (cf. Text-fig. 3c, d and 3e, f) originally embedded in sediment, b: frontal, c: frontal and prefrontal, d: intertemporal, e: parietal and postorbital, f: supratemporal and clavicle, g: parasphenoid, h: pterygoid. Abbreviations: ar.s. – articulating surface, CL – clavicle, cult. pr. – cultriform process, DE – dentary, FR – frontal, IT – intertemporal, JU – jugal, l. j. – lower jaw, or.m. – orbital margin, pal. ram. – palatal ramus, pl. pr. – posterolateral process, PO – postorbital, POFR – postfrontal, PP – postparietal, PRFR – prefrontal, ST – supratemporal, TAB – tabular. in First Record Of The Stem Amniote Discosauriscus (Seymouriamorpha, Discosauriscidae) From The Krkonoše Piedmont Basin (The Czech Republic)