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Labidiosuchus
''Labidiosuchus'' is an extinct genus of notosuchian mesoeucrocodylian from Minas Gerais State, southeastern Brazil. ''Labidiosuchus'' had a very bizarre dentition and its lower jaw had a Y-shaped outline. Discovery ''Labidiosuchus'' is known only from the holotype specimen DGM 1480-R, an incomplete lower jaw with the anterior part of the dentary complete, lacking most of the right mandibular ramus and the end of the left mandibular ramus. It is housed at the Earth Science Museum of the Departamento Nacional da Produção Mineral. A cast is housed at the Departamento de Geologia, Universidade Federal do Rio de Janeiro. It was found in Serra do Veadinho site, Municipality of Peirópolis of Minas Gerais State, from a site in which ''Itasuchus'', yet another enigmatic mesoeucrocodylian, was found. It was collected from the Serra da Galga Formation (Bauru Group) in the Bauru Basin, which dates to the late Maastrichtian stage of the Late Cretaceous. Description ''Labidiosuc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Notosuchia
Notosuchia is a suborder of primarily Gondwanan mesoeucrocodylian crocodylomorphs that lived during the Jurassic and Cretaceous. Some phylogenies recover Sebecosuchia as a clade within Notosuchia, others as a sister group (see below); if Sebecosuchia is included within Notosuchia its existence is pushed into the Middle Miocene, about 11 million years ago. Fossils have been found from South America, Africa, Asia, and Europe. Notosuchia was a clade of terrestrial crocodilians that evolved a range of feeding behaviours, including herbivory (''Chimaerasuchus''), omnivory ('' Simosuchus''), and terrestrial hypercarnivory ('' Baurusuchus''). It included many members with highly derived traits unusual for crocodylomorphs, including mammal-like teeth, flexible bands of shield-like body armor similar to those of armadillos (''Armadillosuchus''), and possibly fleshy cheeks and pig-like snouts (''Notosuchus''). The suborder was first named in 1971 by Zulma Gasparini and has since under ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Notosuchian
Notosuchia is a suborder of primarily Gondwanan mesoeucrocodylian crocodylomorphs that lived during the Jurassic and Cretaceous. Some phylogenies recover Sebecosuchia as a clade within Notosuchia, others as a sister group (see below); if Sebecosuchia is included within Notosuchia its existence is pushed into the Middle Miocene, about 11 million years ago. Fossils have been found from South America, Africa, Asia, and Europe. Notosuchia was a clade of terrestrial crocodilians that evolved a range of feeding behaviours, including herbivory (''Chimaerasuchus''), omnivory (''Simosuchus''), and terrestrial hypercarnivory (''Baurusuchus''). It included many members with highly derived traits unusual for crocodylomorphs, including mammal-like teeth, flexible bands of shield-like body armor similar to those of armadillos (''Armadillosuchus''), and possibly fleshy cheeks and pig-like snouts (''Notosuchus''). The suborder was first named in 1971 by Zulma Gasparini and has since undergone ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Serra Da Galga Formation
The Serra da Galga Formation is a geological formation in Minas Gerais state of southeastern Brazil. Its strata date back to the Maastrichtian, and are part of the Bauru Group.It was originally considered a member of the Marília Formation. Dinosaur remains are among the fossils that have been recovered from the formation.Weishampel et al., 2004, pp. 600-604 Fossil content Crurotarsans Ornithodirans Three distinct titanosaurids denoted as forms A, B, and C have been found in Area 4. Titanosaurine remains are known from Areas 1 and 2. Indeterminate theropod remains known from Area 1. Indeterminate maniraptor remains known from Area 1. Indeterminate abelisaurid remains are known from Areas 1 and 2. Indeterminate Carcharodontosaurid remains are known from Area 1. See also * List of dinosaur-bearing rock formations This list of dinosaur-bearing rock formations is a list of geologic formations in which dinosaur fossils have been documented. Containing body fossils * L ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sphagesauridae
Sphagesauridae is a Gondwanan family of mesoeucrocodylians that lived during the Late Cretaceous. It was a clade of terrestrial crocodilians that evolved very mammal-like teeth and jaws.MARINHO, T.S. & CARVALHO, I.S. Revision of the Sphagesauridae KUHN, 1968 (Crocodyliformes, Mesoeucrocodylia). In: CARVALHO, I.S.; CASSAB, R.C.T.; SCHWANKE, C.; CARVALHO, M.A.; FERNANDES, A.C.S.; RODRIGUES, M.A.; CARVALHO, M.S.S.; ARAI, M.; OLIVEIRA, M.E.Q. (Orgs.). Paleontologia: Cenários de Vida. 1 ed. Rio de Janeiro: Interciência, 2007, v.1, p.589-599.Pol D. 2003. New remains of ''Sphagesaurus huenei'' (Crocodylomorpha: Mesoeucrocodylia) from the Late Cretaceous of Brazil. ''Journal of Vertebrate Paleontology'' 23 (4): 817–831. Both ''Sphagesaurus'' and '' Adamantinasuchus'' are known from the Turonian to Santonian of Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Late Cretaceous
The Late Cretaceous (100.5–66 Ma) is the younger of two epochs into which the Cretaceous Period is divided in the geologic time scale. Rock strata from this epoch form the Upper Cretaceous Series. The Cretaceous is named after ''creta'', the Latin word for the white limestone known as chalk. The chalk of northern France and the white cliffs of south-eastern England date from the Cretaceous Period. Climate During the Late Cretaceous, the climate was warmer than present, although throughout the period a cooling trend is evident. The tropics became restricted to equatorial regions and northern latitudes experienced markedly more seasonal climatic conditions. Geography Due to plate tectonics, the Americas were gradually moving westward, causing the Atlantic Ocean to expand. The Western Interior Seaway divided North America into eastern and western halves; Appalachia and Laramidia. India maintained a northward course towards Asia. In the Southern Hemisphere, Australia a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Autapomorphies
In phylogenetics, an autapomorphy is a distinctive feature, known as a derived trait, that is unique to a given taxon. That is, it is found only in one taxon, but not found in any others or outgroup taxa, not even those most closely related to the focal taxon (which may be a species, family or in general any clade). It can therefore be considered an apomorphy in relation to a single taxon. The word ''autapomorphy'', first introduced in 1950 by German entomologist Willi Hennig, is derived from the Greek words αὐτός, ''autos'' "self"; ἀπό, ''apo'' "away from"; and μορφή, ''morphḗ'' = "shape". Discussion Because autapomorphies are only present in a single taxon, they do not convey information about relationship. Therefore, autapomorphies are not useful to infer phylogenetic relationships. However, autapomorphy, like synapomorphy and plesiomorphy is a relative concept depending on the taxon in question. An autapomorphy at a given level may well be a synapomorphy at ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Name Of A Biological Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. '' Panthera leo'' (lion) and '' Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants of an ancestral taxon are grouped together (i.e. phylogenetic analysis should clearly demo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type Species
In zoological nomenclature, a type species (''species typica'') is the species name with which the name of a genus or subgenus is considered to be permanently taxonomically associated, i.e., the species that contains the biological type specimen(s). Article 67.1 A similar concept is used for suprageneric groups and called a type genus. In botanical nomenclature, these terms have no formal standing under the code of nomenclature, but are sometimes borrowed from zoological nomenclature. In botany, the type of a genus name is a specimen (or, rarely, an illustration) which is also the type of a species name. The species name that has that type can also be referred to as the type of the genus name. Names of genus and family ranks, the various subdivisions of those ranks, and some higher-rank names based on genus names, have such types. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Candidodon
''Candidodon'' is an extinct genus of notosuchian mesoeucrocodylian. Fossils have been found in the Early Cretaceous Itapecuru Formation in Brazil. Description The genus is characterized by a particularly elongate pair of choanae in its palate. It has been named the type genus of the family Candidodontidae, first constructed in 2004. It was initially assigned to the family with a proposed sister genus, ''Mariliasuchus'', but a recent phylogenetic analysis has shown that ''Mariliasuchus'' may instead be closer in relation to '' Comahuesuchus'' than to ''Candidodon'' and thus a member of the family Comahuesuchidae Comahuesuchidae is a family of notosuchian crocodyliforms. Constructed in 1991, it includes the genera ''Comahuesuchus'' and ''Anatosuchus''. Among the characteristics that are unique to this family is an external naris that is inset into the tip .... If this is true, ''Candidodon'' would be the only member of the family Candidodontidae. References Notos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Notosuchidae
Notosuchidae is a Gondwanan family of notosuchians. They were small-bodied terrestrial crocodyliforms that lived during the Late Cretaceous The Late Cretaceous (100.5–66 Ma) is the younger of two epochs into which the Cretaceous Period is divided in the geologic time scale. Rock strata from this epoch form the Upper Cretaceous Series. The Cretaceous is named after ''creta'', the .... References Early Cretaceous crocodylomorphs Terrestrial crocodylomorphs Late Cretaceous crocodylomorphs Turonian first appearances Santonian extinctions Prehistoric reptile families {{paleo-archosaur-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sphagesaurus
''Sphagesaurus'' is an extinct genus of sphagesaurid notosuchian crocodylomorph from the Late Cretaceous of southwest São Paulo, southern Brazil. Species and discovery ''Sphagesaurus'' was first described and named by Llewellyn Ivor Price in 1950 and the type species is ''S. huenei''. ''S. huenei'' was described by Price (1950) on the basis of two isolated molariform maxillary teeth, the holotype DGM 332-R and the referred specimen DGM 333-R. The holotype was found in a railway cut between the cities of Presidente Bernardes and Santo Anastacio in the state of São Paulo, while DGM 333-R was found near Catanduva city of São Paulo, both from the Bauru Group. Bertini ''et al.'' (1993) referred the isolated molariform tooth, URC-R 015 from Locality 99 of the Adamantina Formation, to ''S. huenei'', and referred the DGM specimens to the same formation. Kellner ''et al.'' (1995) and Kellner & Campos (1999) tentatively assigned DGM 1411-R, a nearly comple ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adamantinasuchus
''Adamantinasuchus'' is an extinct genus of notosuchian crocodylomorph from and named after the Late Cretaceous Adamantina Formation of Brazil. It is known from only one fossil, holotype UFRJ-DG 107-R, collected by William Nava (hence the specific name ''navae''). The fossil consists of a partial skull, fragmentary limb bones and a few broken vertebrae, and was found 25 km SW of the town of Marilia, near a reservoir dam. ''Adamantinasuchus'' was approximately 60 cm long from nose to tail, and would have only weighed a few kilograms. Features Skull ''Adamantinasuchus'''s skull is quite well preserved; most of the right anterior part is present, along with some of the right posterior part, but the cranium is crushed and the left side of the skull is altogether missing. The right lower jaw is also preserved, along with many of the teeth. The skull is small, only 60 mm long and around 30 mm high, but the elliptical orbits are very large, almost as long as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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