| Labidosauriscus Temporal range: Early Permian | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Family: | † Captorhinidae |
| Genus: | † Labidosauriscus Modesto, Scott & Reisz, 2018 |
| Species: | †L. richardi |
| Binomial name | |
| †Labidosauriscus richardi Modesto, Scott & Reisz, 2018 | |
Labidosauriscus is an extinct genus of anapsid reptile from the Permian period of North America. Fossils have been discovered in Oklahoma. [1]
Captorhinidae is an extinct family of tetrapods, typically considered primitive reptiles, known from the late Carboniferous to the Late Permian. They had a cosmopolitan distribution across Pangea.
Labidosaurus is an extinct genus of reptile from the Permian period of North America. Fossils have been discovered in Texas.
Captorhinus is an extinct genus of captorhinid reptiles that lived during the Permian period. Its remains are known from North America and possibly South America.
Labidosaurikos is a genus of extinct captorhinid anapsid reptile that lived around 279 to 272 million years ago during Kungurian age of the lower Permian. The American paleontologist John Willis Stovall first described Labidosaurikos in 1950, naming it "Labidosaurus like" for the striking similarity of the holotype skull of his specimen to the cranial anatomy of another captorhinid Labidosaurus hamatus. Labidosaurus or generally called "lipped lizard" is another genus of the family Captorhinidae whose name is derived from the Greek for "forceps lizard" based on τσιμπίδα and σαυρος ("lizard")
Euryodus is an extinct genus of microsaur within the family Gymnarthridae. Euryodus is a Lepospondyl from the clade Microsauria that lived during the Lower Permian. The name comes from Greek, meaning ‘broad-tooth’. It has been found in the southern half of North America, from its original discovery in Texas up to Utah.
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.
Reiszorhinus is an extinct genus of Early Permian captorhinid known from the United States. The type species is Reiszorhinus olsoni. Fossils have been found from the Waggoner Ranch Formation in north-central Texas. It is distinguishable by its recurved teeth and extremely large Meckelian foramen on the inner surface of the lower jaw. It has been considered a primitive member of its family because it has a single tooth along the margins of the jaws. While most single-tooth-rowed captorhinids are small, Reiszorhinus is relatively large. However, Reiszorhinus differs from other large captorhinids in that the cheek region is not wide and expanded.
Gansurhinus is an extinct genus of moradisaurine captorhinid known from the Middle Permian Qingtoushan Formation of the Qilian Mountains and the Late Permian Naobaogou Formation in the Daqing Mountains of China. It was first named by Robert R. Reisz, Jun Liu, Jin-Ling Li and Johannes Müller in 2011 and the type species is Gansurhinus qingtoushanensis. A second species, Gansurhinus naobaogouensis, was described in 2023 based on a relatively complete skeleton of an immature individual.
Protocaptorhinus is an extinct genus of Early Permian captorhinid reptile known from Texas of the United States. It is known from the holotype MCZ 1478, a three-dimensionally preserved partial skull. It was collected in the Rattlesnake Canyon site from the Petrolia Formation. It was first named by Clark and Carroll in 1973 and the type species is Protocaptorhinus pricei. The generic name means "first Captorhinus" and the specific name honours Llewellyn Ivor Price.
Euconcordia is an extinct genus of Late Carboniferous captorhinid known from Greenwood County, Kansas of the United States.
Thuringothyris is an extinct genus of Early Permian eureptiles known from the Thuringian Forest in central Germany.
Saurorictus is an extinct genus of Late Permian captorhinid known from Western Cape Province of South Africa.
Rhiodenticulatus is an extinct genus of Early Permian captorhinid known from Rio Arriba County, New Mexico of the United States.
Baeotherates is an extinct genus of Early Permian captorhinid reptile known from Oklahoma, United States.
Paleontology in Oklahoma refers to paleontological research occurring within or conducted by people from the U.S. state of Oklahoma. Oklahoma has a rich fossil record spanning all three eras of the Phanerozoic Eon. Oklahoma is the best source of Pennsylvanian fossils in the United States due to having an exceptionally complete geologic record of the epoch. From the Cambrian to the Devonian, all of Oklahoma was covered by a sea that would come to be home to creatures like brachiopods, bryozoans, graptolites and trilobites. During the Carboniferous, an expanse of coastal deltaic swamps formed in areas of the state where early tetrapods would leave behind footprints that would later fossilize. The sea withdrew altogether during the Permian period. Oklahoma was home a variety of insects as well as early amphibians and reptiles. Oklahoma stayed dry for most of the Mesozoic. During the Late Triassic, carnivorous dinosaurs left behind footprints that would later fossilize. During the Cretaceous, however, the state was mostly covered by the Western Interior Seaway, which was home to huge ammonites and other marine invertebrates. During the Cenozoic, Oklahoma became home to creatures like bison, camels, creodonts, and horses. During the Ice Age, the state was home to mammoths and mastodons. Local Native Americans are known to have used fossils for medicinal purposes. The Jurassic dinosaur Saurophaganax maximus is the Oklahoma state fossil.
The Waggoner Ranch Formation is a geologic formation in northern Texas. It preserves fossils dating back to the Artinskian to Kungurian stages of the Permian period.
Opisthodontosaurus is an extinct genus of captorhinid reptile from the Early Permian of Oklahoma. The type species Opisthodontosaurus carrolli was named in 2015 on the basis of several articulated skeletons from the Dolese Brothers Limestone Quarry near Richards Spur. Before the description of these skeletons, the jaws and teeth of Opisthodontosaurus carrolli were thought to belong to a species of lepospondyl amphibian called Euryodus primus. Although captorhinid reptiles and lepospondyl amphibians are distantly related, the two species show a remarkable degree of evolutionary convergence in their dental anatomy. Both were likely durophagous, eating hard-shelled invertebrates.
Richards Spur is a Permian fossil locality located at the Dolese Brothers Limestone Quarry north of Lawton, Oklahoma. The locality preserves clay and mudstone fissure fills of a karst system eroded out of Ordovician limestone and dolomite, with the infilling dating to the Artinskian stage of the early Permian (Cisuralian), around 289 to 286 million years ago. Fossils of terrestrial animals are abundant and well-preserved, representing one of the most diverse Paleozoic tetrapod communities known. A common historical name for the site is Fort Sill, in reference to the nearby military base. Fossils were first reported at the quarry by workers in 1932, spurring a wave of collecting by local and international geologists. Early taxa of interest included the abundant reptile Captorhinus and microsaurs such as Cardiocephalus and Euryodus. Later notable discoveries include Doleserpeton, the most diverse assortment of parareptiles in the Early Permian, and the rare early diapsid Orovenator.
Rhodotheratus is an extinct genus of captorhinid from the Early Permian Hennessey Formation of Oklahoma. The type species is R. parvus.
Moradisaurus is an extinct genus of large captorhinid reptile, with a single species Moradisaurus grandis, known from the late Permian (Lopingian) aged Moradi Formation of Niger. It is the largest captorhinid known, estimated to have reached a snout-vent length of over two metres. Similar to other members of Moradisaurinae, it possessed multiple tooth rows, which is associated with a high-fiber herbivorous diet.
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