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Anhangueria
Ornithocheiromorpha (from Ancient Greek, meaning "bird hand form") is a group of pterosaurs within the suborder Pterodactyloidea. Fossil remains of this group date back from the Early to Late Cretaceous periods (Valanginian to Turonian stages), around 140 to 92.5 million years ago. Ornithocheiromorphs have been discovered worldwide except Antarctica, though most genera have been recovered in Europe, Asia and South America. They were the most diverse and successful pterosaurs during the Early Cretaceous, but throughout the Late Cretaceous they were replaced by pteranodontians and azhdarchoids. The Ornithocheiromorpha was defined in 2014 by Andres and colleagues, and they made Ornithocheiromorpha the most inclusive clade containing ''Ornithocheirus'', but not ''Pteranodon''. Ornithocheiromorphs are considered to be some of the largest animals to have ever flown. Members of this group are also regarded to have some of the largest pterosaur wingspans, such as the one estimated for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anhangueridae
Anhangueridae (alternatively called Ornithocheiridae, meaning "bird hands") is a group of pterosaurs within the suborder Pterodactyloidea. These pterosaurs were among the last to possess teeth. Members that belong to this group lived from the Early to Late Cretaceous periods (Valanginian to Turonian stages), around 140 to 90 million years ago. Anhanguerids are generally infamous for having an enormously controversial and very confusing taxonomy. Although agreements that these animals were related, and therefore similar to istiodactylids and pteranodontians, there is still no virtual consensus over the exact content and interrelationships of this group. Anhanguerids were the most successful pterosaurs during their reign, and were also the largest pterosaurs before the appearance of the azhdarchids such as ''Quetzalcoatlus''. Anhanguerids were excellent fish hunters, using various flight techniques to catch their prey, and were also capable of flying great distances without fla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boreopteridae
Boreopteridae (meaning "northern wings") is a group of pterodactyloid pterosaurs from the Aptian-age Lower Cretaceous Yixian Formation of Liaoning, China. Classification In 2006, Lü Junchang and colleagues named the clade Boreopteridae for the clade containing the common ancestor of '' Boreopterus'' and '' Feilongus'' and all its descendants, which the authors reclassified as close relatives of the ornithocheirids. (''Feilongus'' had originally been considered a gallodactylid). Many possible boreopterids were subsequently described, one possible example being '' Aetodactylus'', which has been claimed to be similar to '' Boreopterus''. Originally considered close relatives of the ornithocheirids, many of these supposed boreopterids have been found to belong to other groups of the pterodactyloid lineage. In 2012, a phylogenetic analysis by Lü ''et al.'' divided the Boreopteridae into two subfamilies: Boreopterinae, comprising ''Boreopterus'' and ''Zhenyuanopterus'', and Moganopt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Targaryendraconia
Targaryendraconia is an extinct clade of lanceodontian pterosaurs that lived from the Early to Late Cretaceous period in Europe, North America, South America, and Australia. Classification Below is a cladogram following a topology by Pêgas and colleagues in 2019. In their analysis, they recovered Targaryendraconia as the sister taxon of the clade Anhangueria, both of which are within the more inclusive group Ornithocheirae. Targaryendraconia is split into two families: the Targaryendraconidae, which contains '' Aussiedraco'', '' Barbosania'', and '' Targaryendraco'', and the Cimoliopteridae, which contains '' Aetodactylus'', '' Camposipterus'', and '' Cimoliopterus''.Rodrigo V. Pêgas, Borja Holgado & Maria Eduarda C. Leal (2019) On ''Targaryendraco wiedenrothi'' gen. nov. (Pterodactyloidea, Pteranodontoidea, Lanceodontia) and recognition of a new cosmopolitan lineage of Cretaceous toothed pterodactyloids, Historical Biology, Contrastingly, a study by Alexander Averianov ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Linlongopterus
''Linlongopterus'' is a genus of pteranodontoidea, pteranodontoid pterodactyloidea, pterodactyloid pterosaur from the Early Cretaceous of China. It is known from a partial skull and mandible first named and described in 2015 by Rodrigues ''et al.''. The only known specimen was found in the Jiufotang Formation of the Liaoning Province or China, and lived around 120 million years ago. The full binomial of the taxon is ''Linlongopterus jennyae''. Discovery and naming The genus ''Linlongopterus'' was described and named in a 2015 paper by Taissa Rodrigues, Shunxing Jiang, Xin Cheng, Xiaolin Wang, and Alexander Kellner in ''Historical Biology'', containing the single species ''L. jennyae''. The species is based on a singular specimen, IVPP V15549, stored at the Institute of Vertebrate Paleontology and Paleoanthropology in Beijing, China. It was discovered in the rocks of the Jiufotang Formation in Jianchang County, Liaoning province, and is split into two blocks of material which neede ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hamipteridae
Hamipteridae (or hamipterids) is a small family of anhanguerian pterosaurs known from the Early Cretaceous of China and Spain. Classification The cladogram below follows the topology recovered by Pêgas ''et al.'' (2019). In the analysis, they assigned Hamipteridae as the sister taxon of the family Anhangueridae, both within the larger clade Anhangueria Ornithocheiromorpha (from Ancient Greek, meaning "bird hand form") is a group of pterosaurs within the suborder Pterodactyloidea. Fossil remains of this group date back from the Early to Late Cretaceous periods (Valanginian to Turonian stages) ....Rodrigo V. Pêgas, Borja Holgado & Maria Eduarda C. Leal (2019) On ''Targaryendraco wiedenrothi'' gen. nov. (Pterodactyloidea, Pteranodontoidea, Lanceodontia) and recognition of a new cosmopolitan lineage of Cretaceous toothed pterodactyloids, Historical Biology, References Pteranodontoidea Pterosaur families {{pterosaur-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tropeognathus
''Tropeognathus'' (meaning "keel jaw") is a genus of large pterosaurs from the late Early Cretaceous of South America. This genus is considered to be a member of the family Anhangueridae, however, several studies have also recovered it within another family called Ornithocheiridae. Both of these families are diverse groups of pterosaurs known for their keel-tipped snouts and large size. ''Tropeognathus'' is regarded as the largest pterosaur found in the Southern Hemisphere, only rivaled by the huge azhdarchids. The type and only species is ''Tropeognathus mesembrinus''. Fossil remains of ''Tropeognathus'' have been recovered from the Romualdo Formation, which is a Lagerstätte located in the Santana Group of the Araripe Basin in northeastern Brazil. Discovery and naming In the 1980s the German paleontology museum ''Bayerische Staatssammlung für Paläontologie und historische Geologie'' in Munich acquired a pterosaur skull from Brazilian fossil dealers that had probably been ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lonchodectidae
Lonchodectidae or LonchodraconidaePêgas, R.V., Holgado, B., Leal, M.E.C., 2019. "''Targaryendraco wiedenrothi'' gen. nov. (Pterodactyloidea, Pteranodontoidea, Lanceodontia) and recognition of a new cosmopolitan lineage of Cretaceous toothed pterodactyloids", ''Historical Biology'', 1–15. doi:10.1080/08912963.2019.1690482 is a group of pterosaurs within the clade Pterodactyloidea. It has variously been considered to be within Ctenochasmatoidea, Azhdarchoidea and Pteranodontoidea.Witton, M.P., Martill, D.M., and Green, M. (2009). "On pterodactyloid diversity in the British Wealden (Lower Cretaceous) and a reappraisal of “Palaeornis” ''cliftii'' Mantell, 1844." ''Cretaceous Research'', 30: 676–686. They are notable for their high, conical tooth sockets and raised alveolar margins.''Pterosaurs: Natural History, Evolution, Anatomy'', Mark P. Witton (2013) Taxonomic history Lonchodectidae was first named by paleontologist Reginald Walter Hooley in 1914, and was first conside ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yixianopterus
''Yixianopterus'' is a pterodactyloid pterosaur genus from the Barremian-Aptian-age Lower Cretaceous Yixian Formation of Liaoning, China. It is known from a single specimen, holotype JZMP-V-12, housed at the Benxi Geological Museum. This specimen was modified before acquisition, with much of the skull being fabricated. The Jinggangshan bedding in which the specimen was found is basaltic with siliciclastic sediments. Many organisms associated with this layer of the Yixian Formation are aquatic, indicating a marine environment with much volcanic activity. Classification Lü ''et al.'' (2006) assigned ''Yixianopterus'' to the Lophocratian family Lonchodectidae based on dental characters, and ratio comparisons between wing phalanx I and II, metacarpal IV, and ulna. This specimen was classified it as the first Asian representative of Lonchodectidae. Martill (2011) considered it potentially related to his new taxon '' Unwindia'', and Witton (2013) assigned it to the family Ornithocheir ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pterodactyloidea
Pterodactyloidea ( ; derived from the Greek words ''πτερόν'' (''pterón'', for usual ''ptéryx'') "wing", and ''δάκτυλος'' (''dáktylos'') "finger") is one of the two traditional suborders of pterosaurs ("wing lizards"), and contains the most derived members of this group of flying reptiles. They appeared during the middle Jurassic Period, and differ from the basal (though paraphyletic) rhamphorhynchoids by their short tails and long wing metacarpals (hand bones). The most advanced forms also lack teeth, and by the late Cretaceous, all known pterodactyloids were toothless. Many species had well-developed crests on the skull, a form of display taken to extremes in giant-crested forms like '' Nyctosaurus'' and '' Tupandactylus''. Pterodactyloids were the last surviving pterosaurs when the order became extinct at the end of the Cretaceous Period, together with the non-avian dinosaurs and most marine reptiles. " Pterodactyl" is also a common term for pterodactyloid pte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ornithocheirus
''Ornithocheirus'' (from Ancient Greek "ὄρνις", meaning bird, and "χεῖρ", meaning hand) is a pterosaur genus known from fragmentary fossil remains uncovered from sediments in the United Kingdom and possibly Morocco. Several species have been referred to the genus, most of which are now considered as dubious species, or members of different genera, and the genus is now often considered to include only the type species, ''Ornithocheirus simus''. Species have been referred to ''Ornithocheirus'' from the mid-Cretaceous period of North America, Europe and South America, but ''O. simus'' is known mostly from the United Kingdom, though a specimen referred to ''O.'' cf. ''simus'' is also known from the Late Cretaceous Kem Kem Group of Morocco. Because ''O. simus'' was originally named based on poorly preserved fossil material, the genus ''Ornithocheirus'' has suffered enduring problems of zoological nomenclature. Fossil remains of ''Ornithocheirus'' have been recovered mainly ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antarctica
Antarctica () is Earth's southernmost and least-populated continent. Situated almost entirely south of the Antarctic Circle and surrounded by the Southern Ocean (also known as the Antarctic Ocean), it contains the geographic South Pole. Antarctica is the fifth-largest continent, being about 40% larger than Europe, and has an area of . Most of Antarctica is covered by the Antarctic ice sheet, with an average thickness of . Antarctica is, on average, the coldest, driest, and windiest of the continents, and it has the highest average elevation. It is mainly a polar desert, with annual Climate of Antarctica#Precipitation, precipitation of over along the coast and far less inland. About 70% of the world's freshwater reserves are frozen in Antarctica, which, if melted, would raise global sea levels by almost . Antarctica holds the record for the Lowest temperature recorded on Earth, lowest measured temperature on Earth, . The coastal regions can reach temperatures over in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Period (geology)
The geologic time scale or geological time scale (GTS) is a representation of time based on the rock record of Earth. It is a system of chronological dating that uses chronostratigraphy (the process of relating strata to time) and geochronology (a scientific branch of geology that aims to determine the age of rocks). It is used primarily by Earth scientists (including geologists, paleontologists, geophysicists, geochemists, and paleoclimatologists) to describe the timing and relationships of events in geologic history. The time scale has been developed through the study of rock layers and the observation of their relationships and identifying features such as lithologies, paleomagnetic properties, and fossils. The definition of standardised international units of geological time is the responsibility of the International Commission on Stratigraphy (ICS), a constituent body of the International Union of Geological Sciences (IUGS), whose primary objective is to precisely ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
