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Ceratodontiformes
Ceratodontiformes is the only extant order of lungfish, containing the families Neoceratodontidae, Lepidosirenidae, and Protopteridae as well as many other extinct groups. Members of this group are the only lungfish known to have survived the Permian–Triassic extinction event, Permian-Triassic extinction event. Although lungfish originated in marine environments, the Ceratodontiformes have been an exclusively freshwater group since the Carboniferous. This order was formerly considered the suborder Ceratodontoidei. All lungfish of the order can and often do Aestivate, estivate (except the Spotted lungfish, spotted African lungfish, which can but rarely does so). All members of the order are obligatory air-breathers; only the Australian lungfish has functioning gills when adult; members of the Lepidosirenidae have gills only when they are larvae. The South American and African lungfish also all have generally small scales and two lungs as opposed to the Australian lungfish's singl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lungfish
Lungfish are freshwater vertebrates belonging to the class Dipnoi. Lungfish are best known for retaining ancestral characteristics within the Osteichthyes, including the ability to breathe air, and ancestral structures within Sarcopterygii, including the presence of lobed fins with a well-developed internal skeleton. Lungfish represent the closest living relatives of the tetrapods (which includes living amphibians, reptiles, birds and mammals). The mouths of lungfish typically bear tooth plates, which are used to crush hard shelled organisms. Today there are only six known species of lungfish, living in Africa, South America, and Australia, though they were formerly globally distributed. The fossil record of the group extends into the Early Devonian, over 410 million years ago. The earliest known members of the group were marine, while almost all post-Carboniferous representatives inhabit freshwater environments. Etymology Dipnoi is Modern Latin derived from the Greek δίπν ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ceratodus (genus)
''Ceratodus'' (from , 'horn' and 'tooth') is an extinct genus of freshwater lungfish that was found worldwide during the Mesozoic Era. It has been described as a "catch all", and a " form genus" used to refer to the remains (typically toothplates) of a variety of lungfish belonging to the extinct family Ceratodontidae. Fossil evidence dates back to the Early Triassic. A wide range of fossil species from different time periods have been found around the world in places such as the United States, Argentina, Greenland, England, Germany, Egypt, Madagascar, China, and Australia.Agnolin, F. L., Mateus O., Milàn J., Marzola M., Wings O., Adolfssen J. S., & Clemmensen L. B. (2018). Ceratodus tunuensis, sp. nov., a new lungfish (Sarcopterygii, Dipnoi) from the Upper Triassic of central East Greenland. Journal of Vertebrate Paleontology. e1439834 ''Ceratodus'' is believed to have become extinct sometime around the beginning of the Eocene Epoch. Species The following species are know ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ferganoceratodus
''Ferganoceratodus'' (from Fergana + '' Ceratodus'') is a genus of prehistoric freshwater lungfish known from worldwide during the Mesozoic. Based on morphological evidence, it has either been recovered as a basal member of the Ceratodontiformes or to be the sister group of the Neoceratodontidae (containing the extant Australian lungfish). Challands ''et al'' (2023) defined synapomorphies of the genus as being a pterygoid tooth plate with five to six ridges, a prearticular tooth plate with four to five ridges, three bones on the medial skull roof series, and two bones on the calvarium. Under this definition, the genus is significantly expanded. However, most of these placements are only tentative. Species The following species are currently classified in the genus. Many were formerly classified in '' Ptychoceratodus'', '' Ceratodus'', or other genera, but were reassigned to this genus in 2023: * †''F. acutus'' (Priem, 1924) - Late Triassic of Madagascar (=''Ptychoceratodus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Late Carboniferous
Late or LATE may refer to: Everyday usage * Tardy, or late, not being on time * Late (or the late) may refer to a person who is dead Music * Late (The 77s album), ''Late'' (The 77s album), 2000 * Late (Alvin Batiste album), 1993 * Late!, a pseudonym used by Dave Grohl on his ''Pocketwatch (album), Pocketwatch'' album * Late (rapper), an underground rapper from Wolverhampton * "Late", a song by Kanye West from ''Late Registration'' Other uses * Late (Tonga), an uninhabited volcanic island southwest of Vavau in the kingdom of Tonga * Late (The Handmaid's Tale), "Late" (''The Handmaid's Tale''), a television episode * LaTe, Laivateollisuus, Oy Laivateollisuus Ab, a defunct shipbuilding company * 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 * Late, a synonym for ''cooler'' in Stellar classification#"Early" and "late" nomencla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paraphyly
Paraphyly is a taxonomic term describing a grouping that consists of the grouping's last common ancestor and some but not all of its descendant lineages. The grouping is said to be paraphyletic ''with respect to'' the excluded subgroups. In contrast, a monophyletic grouping (a clade) includes a common ancestor and ''all'' of its descendants. The terms are commonly used in phylogenetics (a subfield of biology) and in the tree model of historical linguistics. Paraphyletic groups are identified by a combination of synapomorphies and symplesiomorphies. If many subgroups are missing from the named group, it is said to be polyparaphyletic. The term received currency during the debates of the 1960s and 1970s accompanying the rise of cladistics, having been coined by zoologist Willi Hennig to apply to well-known taxa like Reptilia (reptiles), which is paraphyletic with respect to birds. Reptilia contains the last common ancestor of reptiles and all descendants of that ancest ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gnathorhizidae
The Gnathorhizidae are an extinct family of lungfish that lived from the late Carboniferous until the middle Triassic. Gnathorhizid fossils have been found in North America, Madagascar, Australia, and possibly Eastern Europe and South Africa. They are characterized by high-ridged toothplates that form cutting blades and a reduction in cranial bones. Taxonomy Previously, based on morphological evidence, it was assumed that Gnathorhizidae was the sister group to the extant families Lepidosirenidae and Protopteridae, which still live in South America and Africa. However, phylogenetic evidence indicates that Gnathorhizidae is a basal group of freshwater lungfish with no close extant relatives, and African and South American lungfish are most closely related to Australian lungfish in Neoceratodontidae. Distribution Gnathorhizids are found in North America, Eastern Europe, Australia, and Africa. Gnathorhizids from North America range from the Gzhelian through the Roadian ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arganodus
''Arganodus'' is an extinct genus of freshwater lungfish that had a wide global distribution throughout much of the Triassic period, with a single species surviving across Gondwana into the Cretaceous. It is the only member of the family Arganodontidae, although it is sometimes placed in the Ceratodontidae or synonymized with the genus ''Asiatoceratodus''. It was first named by Martin in 1979 based on fossils found at Tizi n'Maâchou in the Marrakech area of Morocco, in rocks of the Timezgadiouine Formation belonging to the Argana Group (hence the generic name). Taxonomy ''Arganodus'' contains the following species: * †''A. atlantis'' Martin, 1979 - Carnian of Morocco (Timezgadiouine Formation) and Algeria (Zarzaitine Formation) (=''Ceratodus arganensis'' Martin, 1979) * †''A. dorotheae'' (Ermine Cowles Case, Case, 1921) - Middle Norian of Texas and New Mexico (Tecovas Formation), late Norian of Arizona (Chinle Formation in Petrified Forest National Park) * †''A. mult ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Potamoceratodus
''Potamoceratodus'' is an extinct genus of lungfish belonging to the family Ceratodontidae known from the Late Jurassic Morrison Formation of Colorado, USA. It was first named by Jason D. Pardo, Adam K. Huttenlocker, Bryan J. Small and Mark A. Gorman II in 2010 The year saw a multitude of natural and environmental disasters such as the 2010 Haiti earthquake, the Deepwater Horizon oil spill, and the 2010 Chile earthquake. The 2009 swine flu pandemic, swine flu pandemic which began the previous year ... and the type species is ''Potamoceratodus guentheri''. References Late Jurassic fish Jurassic bony fish Prehistoric lungfish genera Fossil taxa described in 2010 Fossils of the United States History of Colorado Morrison fauna Kimmeridgian genus first appearances Tithonian genus extinctions Jurassic fish of North America Late Jurassic vertebrates of North America {{Jurassic-fish-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paraceratodus
''Paraceratodus'' is an extinct genus of prehistoric lungfish. Only one species, ''P. germaini'', is known from the latest Permian or earliest Triassic period of Madagascar. Phylogenetic evidence supports it being the most basal member of the suborder Ceratodontoidei, which contains modern lungfish, and as with the rest of the order it likely diverged during the late Carboniferous. See also * Sarcopterygii * List of sarcopterygians * List of prehistoric bony fish This list of prehistoric bony fish is an attempt to create a comprehensive listing of all Genus, genera from the fossil record that have ever been considered to be bony fish (class Osteichthyes), excluding purely vernacular terms. The list includ ... References Prehistoric lobe-finned fish genera {{paleo-lobefinned-fish-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gosfordia
''Gosfordia'' is an extinct genus of prehistoric lungfish known from the Triassic of Australia. See also * Sarcopterygii * List of sarcopterygians * List of prehistoric bony fish This list of prehistoric bony fish is an attempt to create a comprehensive listing of all Genus, genera from the fossil record that have ever been considered to be bony fish (class Osteichthyes), excluding purely vernacular terms. The list includ ... References Prehistoric lobe-finned fish genera {{Triassic-fish-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
