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Sebecidae
Sebecidae is an extinct family of prehistoric terrestrial sebecosuchian crocodylomorphs, known from the Late Cretaceous and Cenozoic of Europe and South America. They were the latest surviving group of non-crocodilian crocodylomorphs. The oldest known member of the group is '' Ogresuchus furatus'' known from the Upper Cretaceous (Maastrichtian) Tremp Formation (Spain). Other records of the group are known from the Eocene of Europe. Sebecids were diverse, abundant and broadly distributed in South America (mostly in Argentina, Brazil and Bolivia) during the Cenozoic, from the Paleocene until the Middle Miocene. The youngest known sebecids identified as cf. ''Sebecus'' sp. are reported from the Late Miocene-Early Pliocene strata of the Dominican Republic. This group included many medium- and large-sized genera, from ''Sebecus'' to the giant '' Barinasuchus'' from the Miocene. They are thought to have served as apex terrestrial predators of their ecosystems. Phylogeny Juan Leardi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sebecus
''Sebecus'' (meaning "Sobek" in Latin) is an extinct genus of Sebecidae, sebecid crocodylomorph from Paleogene period of South America. Like other sebecosuchians, it was entirely terrestrial and carnivorous. The genus is currently represented by two species, the type species, 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 United States, 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 mater ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dentaneosuchus
''Dentaneosuchus'' is a genus of large bodied sebecid crocodylomorph from the Middle Eocene of Issel and Réalmont (France). Originally described as ''Atacisaurus crassiproratus'', the discovery of additional remains led to it being placed in a separate genus in 2023. It was tentatively recovered as the basalmost member of the family Sebecidae. Because of this ''Dentaneosuchus'' could play an important part in deciphering the origins and dispersal of European sebecids, as their presence on the continent, far away from their primary range in South America, is still not entirely resolved. It reached a similar size to the enormous '' Barinasuchus'', making it not only one of the biggest sebecids but also the biggest terrestrial carnivore of Cenozoic Europe. ''Dentaneosuchus'' would have been an apex predator of its environment, capable of taking large prey such as ''Lophiodon''. However, for as of yet unknown reasons crocodylomorphs would lose their spot as top predator in this p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sebecosuchia
Sebecosuchia (meaning "Sobek crocodiles") is an extinct group of mesoeucrocodylian crocodyliforms that includes the families Sebecidae and Baurusuchidae. The group was long thought to have first appeared in the Late Cretaceous with the baurusuchids, but '' Razanandrongobe'' pushes the origin of Sebecosuchia to the Middle Jurassic. The last surviving members of the group, the sebecids, appear to have lasted until the late Miocene or early Pliocene on the Greater Antilles. Fossils have been found primarily from South America but have also been found in Europe, North Africa, Madagascar, and the Indian subcontinent. History and phylogeny Sebecosuchia was first constructed in 1937 by George Gaylord Simpson. In 1946 the concept was again used by American paleontologist Edwin Colbert to include '' Sebecus'' and Baurusuchidae. ''Sebecus'', which had been known from South America since 1937, was an unusual crocodyliform with a deep snout and teeth that were ziphodont, or serrated and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 "le ... [...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. The first specimen of ''Barinasuchus'' was recovered from the Miocene Ipururo Formation of Peru, and was described in 1977 by Éric Buffetaut and Robert Hoffstetter, though was originally assigned to ''Sebecus''. Another specimen was recovered from the Eocene-age Divisadero Largo Formation of Argentina in 1984 by Zulma Brandoni de Gasparini. The type specimen was recovered from the Miocene-age Parángula Formation, and was described in 1982 by Alfredo Paolillo and Omar J. Linares. ''Barinasuchus'' body length has been estimated, based on comparisons with other crocodyliforms, at between , though smaller estimates of have been suggested. Its body mass was initially estimated at , making it considerably larger than any terrestrial predatory mammal alive today, though a smaller estimate of has since been put forward. ''Barinasuch ... [...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 El Brete locality, from the[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 |
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 In biological taxonomy, a combinatio nova (abbreviated comb. nov. or n. comb.) refers to the formal renaming of an organism's scientific name when it is transferred to a different genus, reclassified within a different species, or its taxonomic ...'' is ''Zulmasuchus querejazus''. References Sebecidae Paleocene crocodylomorphs Paleocene reptiles of South America Peligran Tiupampan Paleogene Bolivia Fossils of Bolivia Santa Lucía Formation Fossil taxa described in 2007 Prehistoric pseudosuc ... [...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 (), ... [...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 was a portal which provides query, download, and analysis tools to facilitate access to the Paleobiology Database, a large relational database assembled by hundreds of paleontologists from around the world.
History
Fossilworks was cr ... .org
References Sebecidae Eoc ...[...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 |
Sahitisuchus
''Sahitisuchus'' is an extinct genus of sebecid mesoeucrocodylian known from Rio de Janeiro (state), Rio de Janeiro State of southeastern Brazil.''Sahitisuchus'' at Fossilworks.org It contains a single species, ''Sahitisuchus fluminensis''. It is a terrestrial sebecid, although it may also have adopted a semi-aquatic lifestyle to some degree, most probably coexisting with the semi-aquatic Alligatoridae, alligatorid ''Eocaiman, Eocaiman itaboraiensis''. Discovery ''Sahitisuchus'' was named by Alexander Kellner, Alexander W. A. Kellner, André E. P. Pinheiro and Diogenes A. Campos in 2014 in paleontology, 2014 and the type species is ''Sahitisuchus fluminensis''. The name of a biological genus, generic name honors the Xavante people, one of the indigenous Brazi ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
