|
Pipimorpha
Pipimorpha is an unranked clade containing all frogs which are more closely related to living Pipidae species than to living '' Rhinophrynus'' species. Members of this group are highly adapted to aquatic life. The oldest pipimorphs are ''Neusibatrachus'' and '' Gracilibatrachus'' from the Early Cretaceous of Spain, with other records of the group known from Afro-Arabia and South America like modern Pipidae. The extinct family Palaeobatrachidae, particularly the genus '' Palaeobatrachus'' were widespread and abundant in Europe during the Cenozoic, until their extinction during the Middle Pleistocene around 500,000 years ago due to being unable to cope with the increasing aridity and freezing temperatures of the ice ages. Taxonomy Genera are monotypic unless otherwise noted Taxonomy after A. M. Aranciaga Rolando et al. 2019 * †''Neusibatrachus'' Seiffert 1972 La Pedrera de Rúbies Formation, Spain, Early Cretaceous (Barremian) * †'' Gracilibatrachus'' Baez 2013 Las Hoyas, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Huitrera Formation
The Huitrera Formation is a geological formation in the Neuquén Basin in northern Patagonian Argentina whose strata date back to the Early Eocene of the Paleogene, or Casamayoran in the South American land mammal age classification. Description The Huitrera Formation was first defined by Ravazzoli and Sesana in 1977. The name has been used to identify various volcaniclastic sequences, among others in the Ñirihuau fold-and-thrust belt.Escosteguy & Franchi, 2010, p.420 The up to thick formation comprises mudstones and sandstones deposited in a crater lake environment. Part of the formation comprises andesites, dacitic and rhyolitic ignimbrites, volcanic breccias, tuffs and trachybasalts.Prez & Massafero, 2013, p.228 The formation was initially described as Late Eocene to Early Oligocene, but was later dated to 54.24 ± 0.45 Ma, meaning the Huitrera Formation is Ypresian, or in the SALMA classification, Casamayoran in age. Fossil content The following macrofossils were r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nevobatrachus
''Nevobatrachus gracilis'' is the only species in the extinct genus ''Nevobatrachus'', a genus of prehistoric frogs. The original generic name of this frog was ''Cordicephalus'' Nevo (1968); however, this generic name turned out to be preoccupied by a cestode genus ''Cordicephalus'' Wardle, McLeod & Stewart (1947), which remains nomenclaturally available in spite of being considered a junior synonym of the diphyllobothriid genus ''Pyramicocephalus''. Mahony (2019) coined a replacement name ''Nevobatrachus''. Fossils of ''N. gracilis'' were found in a lacustrine deposit in Makhtesh Ramon called "Amphibian Hill" and it is believed they lived during the Lower Cretaceous. When first described by Eviatar Nevo of the University of Haifa (in 1968) the genus ''Cordicephalus'' was thought to contain two species, ''C. gracilis'' and ''C. longicostatus''. Since then it was redescribed and it was determined that ''N. gracilis'' was the only species in the genus. Etymology The original genu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pipidae
The Pipidae are a family of primitive, tongueless frogs. The 41 species in the family Pipidae are found in tropical South America (genus ''Pipa'') and sub-Saharan Africa (the three other genera). Description Pipid frogs are highly aquatic and have numerous morphological modifications befitting their habitat. For example, the feet are completely webbed, the body is flattened, and a lateral line system is present in adults. In addition, pipids possess highly modified ears for producing and receiving sound under water. They lack a tongue or vocal cords, instead having bony rods in the larynx that help produce sound. They range from in body length. Taxonomy Family Pipidae * '' Hymenochirus'' - dwarf clawed frogs (4 species) * ''Pipa'' - Surinam toads (7 species) * '' Pseudhymenochirus'' - Merlin's dwarf gray frog or Merlin's clawed frog (1 species) * ''Xenopus'' - clawed frogs (29 species)Evans et al., 2015 ** Subgenus ''( Silurana)'' - common clawed frogs ** Subgenus ''( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vulcanobatrachus
''Vulcanobatrachus'' is an extinct genus of fossil frog. The genus contains the single species ''Vulcanobatrachus mandelai'' found at Marydale, South Africa, described in 2005 and named after Nelson Mandela. The genus owes its name to the fact that fossils were recovered from an extinct volcanic crater lake of Late Cretaceous age. The fossil frogs are assumed to have died following a limnic eruption (a degassing event possibly of CO2) by the volcano. The existence of fossil specimens was discovered accidentally in the late 1970s during prospecting of the volcanic kimberlite pipe for diamonds by de Beers Mining Company. Specimens of ''Vulcanobatrachus mandelai'' are curated by Iziko South African Museum. It is a member of the clade Pipimorpha, related to the family Pipidae. See also * Prehistoric amphibian * List of prehistoric amphibians This list of prehistoric amphibians is an attempt to create a comprehensive listing of all genera from the fossil record that have ever bee ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thoraciliacus
''Thoraciliacus rostriceps'' is an extinct species of frog from the Cretaceous period and the only species of the genus ''Thoraciliacus'', which is classified in the unranked clade Pipimorpha. Fossils of ''T. rostriceps'' were found in Makhtesh Ramon, Negev Desert, Israel and it is believed they lived during the Barremian. Other fossils have been found near Marydale, South Africa in an Upper Cretaceous lake. Description ''Thoraciliacus rostriceps'' was a small frog, in length, with a large head. It had short hind limbs but its hands and feet were relatively large. Like its close relative '' Nevobatrachus gracilis'', ''T. rostriceps'' was highly aquatic evidenced by its flat skull, short axial column and long metapodials. See also * List of prehistoric amphibians This list of prehistoric amphibians is an attempt to create a comprehensive listing of all genera from the fossil record that have ever been considered to be amphibians, excluding purely vernacular terms. The list inc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Avitabatrachus
''Avitabatrachus uliana'' is the only species discovered so far in the extinct genus ''Avitabatrachus'', a genus of prehistoric frogs that lived in the Middle Cretaceous. Fossils of ''A. uliana'' were found in the Candeleros Formation of northwestern Patagonia in Argentina. It was properly described in 2000 and was then concluded to be most closely related to Pipidae frogs. Hence, it was included in Pipimorpha. Etymology The genus name, ''Avitabatrachus'', is derived from the Greek words ''avita'' meaning "ancient" and ''batrachos'' meaning "frog", so called because it is the oldest record of pipids in South America. The species is named after Miguel Uliana. See also * Prehistoric amphibian This list of prehistoric amphibians is an attempt to create a comprehensive listing of all Genus, genera from the fossil record that have ever been considered to be amphibians, excluding purely vernacular terms. The list includes all commonly accep ... References Mesobatrachia Pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neusibatrachus
''Neusibatrachus'' is an extinct genus of frog, known from the Early Cretaceous (Barremian) La Pedrera de Rúbies Formation of Spain. It is one of the oldest representatives of Pipimorpha. See also * Prehistoric amphibian * List of prehistoric amphibians This list of prehistoric amphibians is an attempt to create a comprehensive listing of all genera from the fossil record that have ever been considered to be amphibians, excluding purely vernacular terms. The list includes all commonly accepted g ... References Early Cretaceous frogs Fossils of Spain {{paleo-anura-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palaeobatrachidae
Palaeobatrachidae is an extinct family of frogs known from the Late Cretaceous to the Pleistocene primarily of Europe. They were highly adapted to aquatic life, like other members of the Pipimorpha. The oldest undoubted records of the family are from the lower Campanian (83.6-77.9 million years ago) of France. By far the most abundant genus is '' Palaeobatrachus'', known from the Eocene to Pleistocene of Europe, with most other named genera in the family synonymised with it, the only exception being ''Albionbatrachus,'' which is distinguished from ''Palaeobatrachus'' by characters of its frontoparietals. The youngest fossils of ''Palaeobatrachus'' date to around 500,000 years ago, during the Middle Pleistocene after which they likely became extinct due to increasing aridity and freezing temperatures during the ice ages. Fossils of indeterminate palaeobatrachids are also known from the Pliocene and Early Pleistocene of Western Siberia Western Siberia or West Siberia (russian: З ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palaeobatrachus
''Palaeobatrachus'' (meaning "ancient frog" in Greek) is an extinct genus of frogs from Europe that existed from the middle Eocene to the middle Pleistocene ( Ionian Stage) (621-568,000 years ago), spanning almost 50 million years. They were obligately aquatic, and would have not spent much time on dry land. They are one of two genera and by far the largest genus in the family Palaeobatrachidae, which are considered to be members of Pipimorpha, related to the South American-African family Pipidae, which includes the African clawed frog and Surinam toad. Description ''Palaeobatrachus'' had a relatively broad skull the shape of a Gothic arch. Its body was relatively large, ranging from in length, and the female was usually larger than the male (sexual dimorphism). Taxonomy ''Palaeobatrachus'' was the first fossil frog to be described, with the first species being ''P. diluvianus'' named by Goldfuss in 1831, originally as ''Rana diluviana'' from remains found in uppermost Oligocen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aptian
The Aptian is an age in the geologic timescale or a stage in the stratigraphic column. It is a subdivision of the Early or Lower Cretaceous Epoch or Series and encompasses the time from 121.4 ± 1.0 Ma to 113.0 ± 1.0 Ma (million years ago), approximately. The Aptian succeeds the Barremian and precedes the Albian, all part of the Lower/Early Cretaceous. The Aptian partly overlaps the upper part of the Western European Urgonian Stage. The Selli Event, also known as OAE1a, was one of two oceanic anoxic events in the Cretaceous Period, which occurred around 120 Ma and lasted approximately 1 to 1.3 million years. The Aptian extinction was a minor extinction event hypothesized to have occurred around 116 to 117 Ma.Archangelsky, Sergio.The Ticó Flora (Patagonia) and the Aptian Extinction Event" ''Acta Paleobotanica'' 41(2), 2001, pp. 115-22. Stratigraphic definitions The Aptian was named after the small city of Apt in the Provence region of France, which is also known for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crato Formation
The Crato Formation is a geologic formation of Early Cretaceous (Aptian) age in northeastern Brazil's Araripe Basin. It is an important Lagerstätte (undisturbed fossil accumulation) for palaeontologists. The strata were laid down mostly during the Aptian age, about 113 million years ago. It thought to have been deposited in a semi-arid lacustrine wetland environment.Ribeiro et al., 2021 The Crato Formation earns the designation of Lagerstätte due to an exceedingly well preserved and diverse fossil faunal assemblage. Some 25 species of fossil fishes are often found with stomach contents preserved, enabling paleontologists to study predator-prey relationships in this ecosystem. There are also fine examples of pterosaurs, reptiles and amphibians, invertebrates (particularly insects), and plants. Even dinosaurs are represented: a new maniraptor was described in 1996. The unusual taphonomy of the site resulted in limestone accretions that formed nodules around dead organisms, pre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Albionbatrachus
''Albionbatrachus'' is an extinct genus of prehistoric frogs from England and Romania. Two species are recognized: While previously synonymised with '' Palaeobatrachus'', it is now considered a distinct palaeobatrachid genus based on characters of the frontoparietals. *''Albionbatrachus oligocenicus'' *''Albionbatrachus wightensis''C. A. M. Meszoely, Z. V. Spinar, and R. L. E. Ford. 1984. A new palaeobatrachid frog from the Eocene of the British Isles. Journal of Vertebrate Paleontology 3(3):143-147 See also * Prehistoric amphibian * List of prehistoric amphibians This list of prehistoric amphibians is an attempt to create a comprehensive listing of all genera from the fossil record that have ever been considered to be amphibians, excluding purely vernacular terms. The list includes all commonly accepted g ... References Prehistoric amphibian genera Oligocene amphibians Cenozoic amphibians of Europe Fossil taxa described in 1984 Mesobatrachia {{mesobatrachia-s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
