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Pariotichus
''Pariotichus'' is an extinct genus of gymnarthrid microsaurs from the early Permian of Texas. History of study ''Pariotichus'' was collected by Jacob Boll from the Wichita Group of Texas in 1878 and described by American paleontologist Edward Drinker Cope in the same year. It is one of the first 'microsaurs' to be described from North America. The type species is ''Pariotichus brachyops'', which remains the only presently recognized species of the genus. Other species of ''Pariotichus'' were described, mostly by Cope, that have subsequently been identified as captorhinomorph reptiles (including the well-known ''Captorhinus aguti'') and were reassigned by Case (1911). One other species, "''Pariotichus megalops''" is a junior synonym of the dvinosaur temnospondyl '' Isodectes obtusus.'' The osteology and relationships of ''P. brachyops'' were subsequently reviewed by Gregory et al. (1956) and Carroll & Gaskill (1978). Anatomy The holotype and only specimen of ''Pariotichus'' i ... [...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 oth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gymnarthridae
Gymnarthridae is an extinct family of tuditanomorph microsaurs. Gymnarthrids are known from Europe and North America and existed from the Late Carboniferous through the Early Permian. Remains have been found from the Czech Republic, Nova Scotia, Illinois, Texas, and Oklahoma. Gymnarthrids are relatively elongate with short limbs. The skulls of gymnarthrids are also small, with a single row of large conical teeth on the margin of the jaw (a feature that distinguishes them from other microsaurs). In some genera, such as ''Bolterpeton'' and ''Cardiocephalus'', the teeth are labiolingually compressed. Gymnarthridae was first erected by E. C. Case in 1910 to include the newly described ''Gymnarthrus''. It was placed in a new suborder, Gymnarthria. Case initially considered gymnarthrids to be reptiles, but later recognized them to be amphibians, placing ''Cardiocephalus'' in the family. ''Pariotichus'' was placed within Gymnarthridae by Alfred Romer after having previously been assi ... [...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 Sam, SAM or variants may refer to: Places * Sam, Benin * Sam, Boulkiemdé, Burkina Faso * Sam, Bourzanga, Burkina Faso * Sam, Kongoussi, Burkina Faso * Sam, Iran * Sam, Teton County, Idaho, United States, a populated place People and fictio .... 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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.''Ox ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animal
Animals are multicellular, eukaryotic organisms in the Kingdom (biology), biological kingdom Animalia. With few exceptions, animals Heterotroph, consume organic material, Cellular respiration#Aerobic respiration, breathe oxygen, are Motility, able to move, can Sexual reproduction, reproduce sexually, and go through an ontogenetic stage in which their body consists of a hollow sphere of Cell (biology), cells, the blastula, during Embryogenesis, embryonic development. Over 1.5 million Extant taxon, living animal species have been Species description, described—of which around 1 million are Insecta, insects—but it has been estimated there are over 7 million animal species in total. Animals range in length from to . They have Ecology, complex interactions with each other and their environments, forming intricate food webs. The scientific study of animals is known as zoology. Most living animal species are in Bilateria, a clade whose members have a Symmetry in biology#Bilate ... [...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] |
Huskerpeton Englehorni
''Huskerpeton'' is an extinct genus of recumbirostran microsaur amphibian from the Early Permian Eskridge Formation of Nebraska, United States. It contains a single species, ''Huskerpeton englehorni''. The genus was named for the University of Nebraska Cornhuskers The Nebraska Cornhuskers (often abbreviated to Huskers) are the intercollegiate athletic teams that represent the University of Nebraska–Lincoln. The university is a member of the Big Ten Conference, and the Cornhuskers compete in NCAA Divis .... References Recumbirostrans Fossil taxa described in 2013 Cisuralian amphibians of North America Paleontology in Nebraska {{Lepospondyli-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tambaroter
''Tambaroter'' is an extinct genus of ostodolepid microsaur from the Early Permian of Germany. The type species ''T. carrolli'' was named in 2011. ''Tambaroter'' is known from a single skull found in the Tambach Formation The Tambach Formation is an Early Permian-age geologic formation in central Germany. It consists of red to brown-colored sedimentary rocks (red beds) such as conglomerate, sandstone, and mudstone, and is the oldest portion of the Upper Rotliegend ..., which is the lowermost unit of the Upper Rotliegend. It is the only vertebrate that has been found outside the Bromacker Quarry, the most productive locality of the formation. It is also the first ostodolepid known from outside North America. Like other ostodolepids, ''Tambaroter'' has a pointed snout. Bones in the cheek region are indented upward, leaving a large gap in the bottom of the back of the skull. ''Tambaroter'' and other ostodolepids have prominent projections in the back of the lower jaws called ret ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Micraroter
''Micraroter'' is an extinct genus of microsaur within the family Ostodolepidae Ostodolepidae, also spelled Ostodolepididae, is an extinct family of Early Permian microsaurs. They are unique among microsaurs in that they were large, reaching lengths of up to , terrestrial, and presumably fossorial. Ostodolepid remains have b .... References Ostodolepids Cisuralian amphibians of North America Fossil taxa described in 1973 {{Lepospondyli-stub ... [...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] |
Eocaecilia
''Eocaecilia'' is an extinct genus of gymnophionan amphibian from the early Jurassic Kayenta Formation of Arizona, United States. One species is described, ''Eocaecilia micropodia''. ''Eocaecilia'' shared some characteristics with salamanders and the now extinct microsaur amphibians. It was of small size, about 15 cm in length. Unlike modern caecilians, which are legless, ''Eocaecilia'' possessed small legs, and while modern caecilians have poorly developed eyes and spend a lot of time under ground, ''Eocaecilias eyes were somewhat better developed. Although the precise ancestry of ''Eocaecilia'' is debated (and other caecilians by extension), it likely resided among the ancestral lepospondyl or temnospondyl Temnospondyli (from Greek language, Greek τέμνειν, ''temnein'' 'to cut' and σπόνδυλος, ''spondylos'' 'vertebra') is a diverse order (biology), order of small to giant tetrapods—often considered Labyrinthodontia, primitive amphi ...Maddin H.C., Jenk ... [...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] |
