A 7diapsid (reptilia) Parietal from the Lower Permian of Oklahoma
نویسنده
چکیده
A single isolated parietal bone from the Fort Sill deposit of Oklahoma is described. It has a well-developed upper temporal opening, resembling that of the primitive South African diapsids. The parietal is compared with that of Araeoscelis and Youngopsis. Based on comparison with this parietal and the configuration of the rear skull table of millerosaurs and romeriids, the bone usually identified as tabular in younginids is designated the supratemporal. The Fort Sill parietal may belong to a form structurally, if not phylogenetically, intermediate between primitive captorhinomorphs and eosuchians.
منابع مشابه
Nobloedischia rasnitsyni, a new genus and species of Oedischiidae (Orthoptera) from the Lower Permian Wellington Formation of Oklahoma, USA
Nobloedischia rasnitsynigen. et sp. n. (Oedischiidae) is described from the Lower Permian Wellington Formation of Noble County, Oklahoma. The genus is similar to both Petrelcana (Oedischiidae: Mezenoedischiinae) and Oedischia (Oedischiidae: Oedischiinae) and is left unplaced at the subfamily level. The new species is the twelfth Orthoptera species and the fourth species of Oedischiidae from the...
متن کاملFistulipora Microparallela (Yang and Lu, 1962) from Lower Permian Bryozoans of Lut Block, Central Iran
The Fistulipora microparallela (Yang and Lu, 1962) species is described for the first time from the Sakmarian deposits of the Sarab section in Lut Block, Central Iran. This species has been reported only from the Permian (Cisuralian-Guadalupian) of the Qilianshan and Kankerin formations, and the Baliqliq Group (Upper Carboniferous to Lower Permian) of Western Xinjiang, China.
متن کاملPALYNOLOGICAL STUDY OF PALEOZOIC SEDIMENTS OF THE CHAL-I-SHEH AREA, SOUTHWESTERN IRAN
The Paleozoic sediments of the Chal-i-Sheh area in southwestern Iran comprising of Mila Formation, Ilebek Formation and Faraghan Formation, were studied palynologically. The samples containing well-preserved palynomorphs include acritarchs, chitinozoans, scolecodonts and pollenlspores. A palynological zonation has been established and comparison was made with other parts of the world. Based...
متن کاملPalynology of the Permian succession from the Ajabshir area (Azerbaijan, Central Iran): a preliminary report
Permian stratigraphic sequences are widely distributed throughout Iranian, making this one of the best locations in the world to study15 this geological time interval. Nevertheless, some units lack detailed biostratigraphic characterization which is essential for16 palaeogeographic reconstructions. This preliminary study comprises a palynological assessment of a Permian stratigraphi...
متن کاملPseudophillipsia (Carniphillipsia) (Trilobite) from the Permian Jamal Formation, Isfahan, Iran
The aim of this study is to bridge a gap in the existence of Trilobites in the marine Permian successions of Iran by exploring a stratigraphic section of the Permian in Jamal Formation (Dizlu section). Based on comprehensive field studies and laboratory investigations three Trilobite specimens were identified in the study area including Pseudophillipsia (Carniphillipsia) dizluensis sp. nov., P...
متن کامل