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Stegotretus
''Stegotretus'' is an extinct genus of lepospondyl microsaur referred to the Pantylidae. It is known from the Carboniferous–Permian boundary Cutler Formation exposures of New Mexico. History of study Material now referred to ''Stegotretus'' was first described (in brief) by Eberth & Berman (1983). It was formally named by Berman et al. (1988). The genus name comes from the Greek ''stegos'' ('roof') and ''tretos'' ('perforated') to refer to a large fenestra found on the palatine bone. The species name, ''S. agyrus'', is said to be derived from Greek ''agyrus'' ('gathering' / 'crowd') in reference to the concentration of all known specimens in a small area. The proper word in ancient Greek for 'gathering' / 'crowd' is however ''agora'' (ἀγορά), with the variant ''agyris'' (ἄγυρις) in the Aeolic dialect.Liddell, H.G. & Scott, R. (1940). ''A Greek-English Lexicon. Revised and augmented throughout by Sir Henry Stuart Jones with the assistance of Roderick McKenzie.''O ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pantylidae
Pantylidae is an extinct family of lepospondyl amphibians and often considered a sister-group to the family Tuditanidae Tuditanidae is an extinct family of tuditanomorph microsaurs. Fossils have been found from Nova Scotia, Ohio, and the Czech Republic and are Late Carboniferous in age. Tuditanids were medium-sized terrestrial microsaurs that resembled lizards. .... The family contains two genera '' Pantylus'' and '' Stegotretus'', while a third, '' Sparodus'', is sometimes placed here as well. References Recumbirostrans {{Lepospondyli-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Microsauria
Microsauria ("small lizards") is an extinct, possibly polyphyletic order of tetrapods from the late Carboniferous and early Permian periods. It is the most diverse and species-rich group of lepospondyls. Recently, Microsauria has been considered paraphyletic, as several other non-microsaur lepospondyl groups such as Lysorophia seem to be nested in it. Microsauria is now commonly used as a collective term for the grade of lepospondyls that were originally classified as members of Microsauria. The microsaurs all had short tails and small legs, but were otherwise quite varied in form. The group included lizard-like animals that were relatively well-adapted to living on dry land, burrowing forms, and others that, like the modern axolotl, retained their gills into adult life, and so presumably never left the water. Distribution Microsaur remains have been found from Europe and North America in Late Carboniferous and Early Permian localities. Most North American microsaurs have be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Proxilodon Bonneri
''Proxilodon'' is an extinct genus of recumbirostran microsaur from the Early Permian Speiser Formation of Kansas, United States. It contains a single species, ''Proxilodon bonneri'', (formerly " Euryodus" ''bonneri''). History of study There is only one known specimen of ''Proxilodon bonneri'', the former holotype of ''Euryodus bonneri'', named by Schultze & Foreman (1981). It was collected in 1976 by Brian Foreman from a roadcut site in Kansas in the lower Speiser Formation (often called the Speiser Shale) that preserves primarily aquatic vertebrates, such as the lungfish '' Gnathorhiza'', the dvinosaur temnospondyl '' Acroplous vorax'', the nectridean lepospondyl ''Diplocaulus'', and the lysorophian '' Lysorophus tricarinatus''. The species was named after Orville Bonner, who prepared the specimen, a complete skull with the left lower jaw in articulation and associated vertebrae and a fragmentary humerus. Huttenlocker et al. (2013) identified numerous differences from other ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lepospondyl
Lepospondyli is a diverse taxon of early tetrapods. With the exception of one late-surviving lepospondyl from the Late Permian of Morocco ('' Diplocaulus minumus''), lepospondyls lived from the Early Carboniferous (Mississippian) to the Early Permian and were geographically restricted to what is now Europe and North America. Five major groups of lepospondyls are known: Adelospondyli; Aïstopoda; Lysorophia; Microsauria; and Nectridea. Lepospondyls have a diverse range of body forms and include species with newt-like, eel- or snake-like, and lizard-like forms. Various species were aquatic, semiaquatic, or terrestrial. None were large (the biggest genus, the diplocaulid ''Diplocaulus'', reached a meter in length, but most were much smaller), and they are assumed to have lived in specialized ecological niches not taken by the more numerous temnospondyl amphibians that coexisted with them in the Paleozoic. Lepospondyli was named in 1888 by Karl Alfred von Zittel, who coined the name ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Recumbirostra
Recumbirostra is a clade of tetrapods which lived during the Carboniferous and Permian periods. They are thought to have had a fossorial (burrowing) lifestyle and the group includes both short-bodied and long-bodied snake-like forms. At least one species, the molgophid '' Nagini mazonense,'' lost its forelimbs entirely. It includes the families Pantylidae, Gymnarthridae, Ostodolepidae, Rhynchonkidae and Brachystelechidae, with additional families such as Microbrachidae and Molgophidae being included by some authors. Recumbirostra was erected as a clade in 2007 to include many of the taxa traditionally grouped in " Microsauria", which has since been shown to be a paraphyletic or polyphyletic grouping. Like other "microsaurs", the recumbirostrans have traditionally been considered to be members of the subclass Lepospondyli; however, many phylogenetic analyses conducted since the 2010s have recovered recumbirostrans as basal sauropsid amniotes instead. Not all phylogenetic an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nannaroter
''Nannaroter'' is an extinct genus of Recumbirostran tetrapod within the family Ostodolepidae. History of study ''Nannaroter'' was named in 2009 by Canadian paleontologists Jason Anderson, Diane Scott, and Robert Reisz. It was known from only the holotype specimen, which was found at the Richards Spur locality in Oklahoma. The holotype, a well preserved skull, was found in early Permian-aged fissure fill deposits in Ordovician limestone. The specific name is given for Mark McKinzie, who found and donated the specimen to the Sam Noble Oklahoma Museum of Natural History. In 2021 a second specimen was referred, ROMVP 86541, a skull with right lower jaw. Anatomy ''Nannaroter'' is the smallest known ostodolepid and is diagnosed by: (1) the high subtemporal recess that separates the postorbital from the squamosal; (2) four premaxillary tooth positions; (3) 12 maxillary tooth positions; circumorbital walls formed by medial laminae of the prefrontal, lacrimal, and jugal; (5) a vent ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Late Carboniferous
Late may refer to: * LATE, an acronym which could stand for: ** Limbic-predominant age-related TDP-43 encephalopathy, a proposed form of dementia ** Local-authority trading enterprise, a New Zealand business law ** Local average treatment effect, a concept in econometrics Music * ''Late'' (album), a 2000 album by The 77s * Late!, a pseudonym used by Dave Grohl on his '' Pocketwatch'' album * Late (rapper), an underground rapper from Wolverhampton * "Late" (song), a song by Blue Angel * "Late", a song by Kanye West from '' Late Registration'' Other * Late (Tonga), an uninhabited volcanic island southwest of Vavau in the kingdom of Tonga * "Late" (''The Handmaid's Tale''), a television episode * LaTe, Oy Laivateollisuus Ab, a defunct shipbuilding company * Late may refer to a person who is Dead See also * * * '' Lates'', a genus of fish in the lates perch family * Later (other) * Tardiness * Tardiness (scheduling) {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Batropetes
''Batropetes'' is an extinct genus of brachystelechid recumbirostran " microsaur". ''Batropetes'' lived during the Sakmarian stage of the Early Permian. Fossils attributable to the type species ''B. fritschi'' have been collected from the town of Freital in Saxony, Germany, near the city of Dresden. Additional material has been found from the Saar-Nahe Basin in southwestern Germany and has been assigned to three additional species: ''B. niederkirchensis'', ''B. palatinus'', and ''B. appelensis''. Description ''Batropetes'' is small and short-bodied for a microsaur. Its average total body length was about . The orbits are large and the skull is short. ''Batropetes'' possesses scales on its underside that are similar to those of reptiles. ''Batropetes'' is distinguished from ''Carrolla'', another brachystelechid microsaur, by the presence of three cusps on the premaxillary and anterior dentary teeth. In ''Carrolla'', there are only two cusps. Additional diagnostic feat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saxonerpeton
''Saxonerpeton'' is an extinct genus of microsaur of the family Hapsidopareiontidae. Fossils have been found from Early Permian strata near Dresden, Germany. See also * List of prehistoric amphibians References External links''Saxonerpeton''in the Paleobiology Database The Paleobiology Database is an online resource for information on the distribution and classification of fossil animals, plants, and microorganisms. History The Paleobiology Database (PBDB) originated in the NCEAS-funded Phanerozoic Marine Pale ... Permian amphibians of Europe Fossil taxa described in 1978 {{paleo-amphibian-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carrolla
''Carrolla'' is an extinct genus of brachystelechid 'microsaur' that lived in the Lower Permian in North America. It was named in 1986 by American paleontologists Wann Langston and Everett Olson. The type species, ''Carrolla craddocki'', is the only known species. History of study ''Carrolla'' was named for the type species by Langston & Olson (1986) for a single, complete skull collected from the early Permian of Archer County, Texas; the specimen is reposited at the Texas Memorial Museum in Austin. They immediately recognized the similarity to Brachystelechus'',' the eponymous genus from Europe; this genus was subsequently synonymized with ''Batropetes,'' traditionally considered a reptile but which had taxonomic precedent. Numerous features were cited as evidence for an ability to burrow, which was considered rare among 'microsaurs' at the time, and several shared features with modern amphibians were noted, although some of these have been subsequently disproven. Maddin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pelodosotis
''Pelodosotis'' is an extinct lepospondyl Lepospondyli is a diverse taxon of early tetrapods. With the exception of one late-surviving lepospondyl from the Late Permian of Morocco ('' Diplocaulus minumus''), lepospondyls lived from the Early Carboniferous (Mississippian) to the Early Per ... amphibian. References *Carroll, R. L., 1988: Vertebrate paleontology and evolution. W. H. Freeman and company, New York, 1988, 698 Ostodolepids Permian amphibians of North America Permian amphibians {{Lepospondyli-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhynchonkos
''Rhynchonkos'' is an extinct genus of microsaur. It is the only known member of the family Rhynchonkidae. Originally known as ''Goniorhynchus'', it was renamed in 1981 because the name had already been given to another genus; the family, likewise, was originally named Goniorhynchidae but renamed in 1988. The type and only known species is ''R. stovalli'', found from the Early Permian Fairmont Shale in Cleveland County, Oklahoma. ''Rhynchonkos'' shares many similarities with '' Eocaecilia'', an early caecilian from the Early Jurassic of Arizona. Similarities between ''Rhynchonkos'' and ''Eocaecilia'' have been taken as evidence that caecilians are descendants of microsaurs. However, such a relationship is no longer widely accepted. Description ''Rhynchonkos'' has an elongated body with at least 37 presacral vertebrae. Most vertebrae have ribs. Unlike other microsaurs, the atlas of ''Rhynchonkos'' lacks ribs. Both ''Rhynchonkos'' and '' Euryodus'' have atlases that bear a stron ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
