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Sebecids
Sebecidae is an extinct family of prehistoric terrestrial sebecosuchian crocodylomorphs. The oldest known member of the group is ''Ogresuchus furatus'' known from the Upper Cretaceous (Maastrichtian) Tremp Formation (Spain). Sebecids were diverse, abundant and broadly distributed in South America (mostly in Argentina, Brazil and Bolivia) during the Cenozoic, until the Middle Miocene; although it has been suggested that at least some forms could have survived until the Miocene-Pliocene boundary in Brazil. This group included many medium- and large-sized genera, from ''Sebecus'' to a giant indeterminate unnamed species from the Miocene. Phylogeny The following cladogram A cladogram (from Greek ''clados'' "branch" and ''gramma'' "character") is a diagram used in cladistics to show relations among organisms. A cladogram is not, however, an evolutionary tree because it does not show how ancestors are related to ... simplified after Diego Pol and Jaime E. Powell (2011). ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lorosuchus
''Lorosuchus'' is an extinct genus of sebecid mesoeucrocodylian known from the Río Loro Formation in Tucumán Province of northwestern Argentina. Discovery ''Lorosuchus'' is known from the holotype PVL 6219, a nearly complete skull found articulated with the lower jaws and fragmentary postcranial remains. It was collected at the southern end of Medina Range, near the El Cadillal Lake from the Río Loro Formation, dating to the Thanetian or the Selandian stage of the Middle to Late Paleocene, about 61.7 to 55.8 million years ago.''Lorosuchus'' at .org ''Lorosuchus'' is characterized by a unique combination of characters, including five |
Sebecus
''Sebecus'' (meaning " Sebek" in Latin) is an extinct genus of sebecid crocodylomorph from Eocene of South America. Like other sebecosuchians, it was entirely terrestrial and carnivorous. The genus is currently represented by two species, the type ''S. icaeorhinus'' and ''S. ayrampu''. Several other species have been referred to ''Sebecus'', but were later reclassified as their own genera. History and species Named by American paleontologist George Gaylord Simpson in 1937, ''Sebecus'' was one of the first known sebecosuchians. Simpson described the type species, ''S. icaeorhinus'', from a fragmented skull and lower jaw found in the Sarmiento Formation. The specimen was discovered by the American Museum of Natural History's First Scarritt Expedition to Patagonia, during 1930 and 1931. Teeth had been known since 1906 when Argentine paleontologist Florentino Ameghino associated them with carnivorous dinosaurs. The more complete material found by Simpson firmly established that the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ayllusuchus
''Ayllusuchus'' is an extinct genus of sebecid mesoeucrocodylian. Fossils have been found in the Lumbrera Formation of Argentina (Eocene age, Casamayoran).''Ayllusuchus'' at Fossilworks
Fossilworks is a portal which provides query, download, and analysis tools to facilitate access to the Paleobiology Database
The Paleobiology Database is an online resource for information on the distribution and classification of fossil animals ... .org
References Sebecids[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barinasuchus
''Barinasuchus'' (meaning " Barinas crocodile," in reference to where the type material was found) is an extinct genus of sebecid mesoeucrocodylian. Its fossils have been found in middle Eocene-age rocks of the Divisadero Largo Formation of Argentina, middle Miocene-age rocks of the Ipururo Formation of Peru, and middle Miocene-age rocks of the Parángula Formation of Venezuela.''Barinasuchus'' at .org Description ''Barinasuchus'' was described in 2007 by Alfredo Paolillo and Omar Linares. The comes ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bretesuchus
''Bretesuchus'' is an extinct genus of sebecosuchian mesoeucrocodylian within the family Sebecidae known from northwestern Argentina.''Bretesuchus'' at .org It was a large (total length approximately 4 m). Discovery s of ''Bretesuchus'' have been found in the |
Ilchunaia
''Ilchunaia'' is an extinct genus of sebecid mesoeucrocodylian. Fossils have been found from the Divisadero Largo Formation of Argentina dating back to the Late Eocene,''Ilchunaia'' at .org and a locality in dating back to the . Little material is known from the genus, with only the anterior portion of the skull being present to study (the |
Langstonia
''Langstonia'' (meaning " rocodileof Langston", in honor of paleontologist Wann Langston, Jr.) is an extinct genus of notosuchian crocodylomorph of the family Sebecidae. It lived in the middle Miocene (specifically in the Laventan land-mammal age), in the "Monkey Beds" of the Colombian Villavieja Formation. ''Langstonia'' was named in 2007 by Alfredo Paolillo and Omar Linares for fossils originally described by Langston in 1965 as ''Sebecus huilensis''. Thus, the type species is ''L. huilensis''. Discovery and naming The first fossils of ''Langstonia'' were discovered in the province of Huila in Colombia by the Spanish geologist José Royo y Gómez, during the expeditions in the region by the American paleontologist Robert Stirton. They were found in the area called the Tatacoa Desert at the locality V-4517, characterized by gray claystone overlying sandstone sediments. These have been named the Honda Group, of the La Venta fauna, the geological formation named the "lech ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ogresuchus
''Ogresuchus'' is an extinct sebecid known from the Upper Cretaceous (Maastrichtian stage) Tremp Formation in Spain. It is the oldest known member of the Sebecidae and it is also the only known Mesozoic sebecid. The type species, ''O. furatus'', was named in 2020. It was a small crocodilian, measuring long and weighing about . Discovery and naming The holotype was discovered in July 2013 at the Mirador del Cretaci site, but it was stolen before palaeontologists could excavate it. After several weeks of searching, the Mossos d'Esquadra Historical Heritage Unit tracked down the stolen specimen and the thief was promptly arrested. The holotype was in a rather precarious state of conservation until it was correctly prepared several years later. It was named ''Ogresuchus furatus'' in 2020 and the holotype is now on display at the Coll de Nargó Dinosaur Museum (Dinosfera). The generic name means "Ogre crocodile", referring to its possible diet of infant sauropod Sauropoda (), who ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sahitisuchus
''Sahitisuchus'' is an extinct genus of sebecid mesoeucrocodylian known from Rio de Janeiro State of southeastern Brazil.''Sahitisuchus'' at .org It contains a single species, ''Sahitisuchus fluminensis''. It is a terrestrial sebecid, however also adopted to a semi-aquatic lifestyle to some degree, most probably coexisting with the semi-aquatic ''''. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zulmasuchus
''Zulmasuchus'' (meaning " Zulma Gasparini's crocodile") is an extinct genus of sebecid sebecosuchian mesoeucrocodylian. Its fossils have been found in Early Paleocene-age rocks (Danian stage) of the Santa Lucía Formation in Bolivia. ''Zulmasuchus'' was named in 2007 by Alfredo Paolillo and Omar Linares for fossils originally described by Buffetaut and Marshall in 1991 as ''Sebecus querejazus''. Thus, the type species is ''Sebecus querezajus'' and the ''combinatio nova ''Combinatio nova'', abbreviated ''comb. nov.'' (sometimes ''n. comb.''), is Latin for "new combination". It is used in taxonomic biology literature when a new name is introduced based on a pre-existing name. The term should not to be confused wi ...'' is ''Zulmasuchus querejazus''. References Sebecids Paleocene crocodylomorphs Paleocene reptiles of South America Peligran Tiupampan Paleogene Bolivia Fossils of Bolivia Santa Lucía Formation Fossil taxa described in 2007 Prehistoric pseudosuchi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cenozoic
The Cenozoic ( ; ) is Earth's current geological era, representing the last 66million years of Earth's history. It is characterised by the dominance of mammals, birds and flowering plants, a cooling and drying climate, and the current configuration of continents. It is the latest of three geological eras since complex life evolved, preceded by the Mesozoic and Paleozoic. It started with the Cretaceous–Paleogene extinction event, when many species, including the non-avian dinosaurs, became extinct in an event attributed by most experts to the impact of a large asteroid or other celestial body, the Chicxulub impactor. The Cenozoic is also known as the Age of Mammals because the terrestrial animals that dominated both hemispheres were mammalsthe eutherians (placentals) in the northern hemisphere and the metatherians (marsupials, now mainly restricted to Australia) in the southern hemisphere. The extinction of many groups allowed mammals and birds to greatly diversify so that l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Argentina
Argentina (), officially the Argentine Republic ( es, link=no, República Argentina), is a country in the southern half of South America. Argentina covers an area of , making it the second-largest country in South America after Brazil, the fourth-largest country in the Americas, and the eighth-largest country in the world. It shares the bulk of the Southern Cone with Chile to the west, and is also bordered by Bolivia and Paraguay to the north, Brazil to the northeast, Uruguay and the South Atlantic Ocean to the east, and the Drake Passage to the south. Argentina is a federal state subdivided into twenty-three provinces, and one autonomous city, which is the federal capital and largest city of the nation, Buenos Aires. The provinces and the capital have their own constitutions, but exist under a federal system. Argentina claims sovereignty over the Falkland Islands, South Georgia and the South Sandwich Islands, and a part of Antarctica. The earliest recorded human prese ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
