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Peirosaurid
Peirosauridae is a Gondwanan family of mesoeucrocodylians that lived during the Cretaceous period. It was a clade of terrestrial crocodyliforms that evolved a rather dog-like form, and were terrestrial carnivores. It was phylogenetically defined in 2004 as the most recent common ancestor of ''Peirosaurus'' and Lomasuchinae and all of its descendants. Lomasuchinae is a subfamily of peirosaurids that includes the genus ''Lomasuchus''. Lomasuchinae was defined in the same 2004 study as the most recent common ancestor of ''Lomasuchus'' and Mahajangasuchini and all of its descendants. Mahajangasuchini, also constructed in the study, was defined as the most recent common ancestor of ''Mahajangasuchus'' and ''Uberabasuchus'' and all of its descendants. However, all more recent phylogenetic analyses placed ''Mahajangasuchus'' within its own family, Mahajangasuchidae, along with the newly named ''Kaprosuchus''. Genera The following list of genera follows Martinelli ''et al.'', 2012 unless ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gasparinisuchus
''Gasparinisuchus'' is an extinct genus of peirosaurid notosuchian known from the Late Cretaceous (Santonian to early Campanian stage) of Neuquén Province, Neuquén and Mendoza Provinces, western central Argentina. It contains a single species, ''Gasparinisuchus peirosauroides''. Discovery ''Gasparinisuchus'' is known only from two individuals. The holotype Museo Provincial de Ciencias Naturales, MOZ 1750 PV represented by partial skull and lower jaws with teeth and various associated postcranial skeleton including vertebrae and dermal plates which are currently missing. It was originally described by Gasparini (1982) and Gasparini ''et al.'' (1991) and referred to ''Peirosaurus torminni''. MOZ 1750 PV was found in the Loma de la Lata locality of the Neuquén Province, Patagonia. It was originally reported as collected from sediments of the Rio Colorado Subgroup, Neuquén Group. Later, Hugo and Leanza (2001) noted that this specimen was actually collected from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colhuehuapisuchus
''Colhuehuapisuchus'' is an extinct genus of peirosaurid notosuchian known from the Late Cretaceous Lago Colhué Huapí Formation in 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, th .... It contains a single species, ''Colhuehuapisuchus lunai''. References {{Notosuchia, S. Crocodylomorphs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lomasuchus
''Lomasuchus'' is an extinct genus of peirosaurid notosuchian known from the Late Cretaceous (Santonian stage) of Neuquén Province, western central Argentina. It contains a single species, ''Lomasuchus palpebrosus''. Gasparini, Z., Chiappe, L. M. and Fernandez, M. (1991). A new Senonian peirosaurid (Crocodylomorpha) from Argentina and a synopsis of the South American Cretaceous crocodilians. ''Journal of Vertebrate Paleontology'' 11:316-333. It is known only from the holotype MOZ 4084 PV which was found in the Loma de la Lata locality of the Neuquén Province, Patagonia. It was originally reported as collected from sediments of the Rio Colorado Subgroup, Neuquén Group. Later, Hugo and Leanza (2001) noted that this specimen was actually collected from the underlying Portezuelo Formation of the Rio Neuquén Subgroup, Neuquén Group. More recent stratigraphic work on this area identified that horizon as belonging to the younger, Coniacian-age, Plottier Formation of the R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antaeusuchus
''Antaeusuchus taouzensis'' is a species of peirosaurid notosuchian from the Late Cretaceous Kem Kem Group of Morocco. It was described in 2021, and it is the only species in the genus ''Antaeusuchus''. It is the fourth notosuchian described from the region and the second Kem Kem peirosaurid after ''Hamadasuchus''. Discovery and naming ''Antaeusuchus'' is known from two specimens: the holotype NHMUK PV R36829, consisting of paired mandibles, and the paratype NHMUK PV R36874, a partial right mandible. Both specimens were commercially collected and recovered from unspecified beds of the Kem Kem Group near Jebel Beg'aa, Taouz township in the Errachidia Province of Morocco. Both fossils are preserved without distortion and in good condition, with damage mostly restricted to the teeth. The generic name derives from Antaeus, a giant from Greek and Berber mythology said to be buried in northern Morocco and the Ancient Greek σοῦχος, soukhos meaning crocodile. The species name refe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Miadanasuchus
''Miadanasuchus'' is an extinct genus of peirosaurid which existed in the Maevarano Formation of Madagascar during the late Cretaceous period (Campanian The Campanian is the fifth of six ages of the Late Cretaceous Epoch on the geologic timescale of the International Commission on Stratigraphy (ICS). In chronostratigraphy, it is the fifth of six stages in the Upper Cretaceous Series. Campanian s ... age). It was first named by Erin L. Rasmusson Simons and Gregory A. Buckley in 2009 and the type species is ''Trematochampsa oblita''. Its teeth were irregularly spaced and variable in height. References Prehistoric pseudosuchian genera Late Cretaceous crocodylomorphs Maevarano fauna Crocodylomorphs of Madagascar Fossil taxa described in 2009 Maastrichtian life {{paleo-archosaur-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stolokrosuchus
''Stolokrosuchus'' is an extinct genus of neosuchian crocodylomorph that lived during the Early Cretaceous. Its fossils, including a skull with a long thin snout and bony knobs on the prefrontal, have been found in Niger. ''Stolokrosuchus'' was described in 2000 by Hans Larsson and Boubacar Gado. The type species is ''S. lapparenti''. They initially described it as related to Peirosauridae, if not a member of that family. One study has shown it to be related to ''Elosuchus''. However, more recent works usually find ''Stolokrosuchus'' to be one of the basalmost neosuchian, only distantly related to the elosuchid or pholidosaurid, ''Elosuchus ''Elosuchus'' is an extinct genus of neosuchian crocodyliform that lived during the Middle Cretaceous of what is now Africa (Niger, Morocco and Algeria). Description and taxonomy ''Elosuchus'' had an elongated snout like a gharial and was prob ...''. Phylogeny The cladogram following by Nicholl ''et al.'' 2021: References ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peirosaurus
''Peirosaurus'' is an extinct genus of peirosaurid crocodylomorph known from the Late Cretaceous period (late Maastrichtian stage) of Minas Gerais, southern Brazil. It contains a single species, ''Peirosaurus torminni''. It is the type genus of the family Peirosauridae. Discovery ''Peirosaurus'' is known from the holotype DGM 433-R, fragmentary skull (left premaxilla bearing five teeth, isolated maxillary and dentary teeth and left palpebral bone) and partial postcranial skeleton including radius, ulna, left pubis and ischium, some presacral and a single caudal vertebrae, ribs, haemal arches and dermal plates. It was collected by Llewellyn Ivor Price in 1947-1949 at the Price Quarry 3, Peirópolis Site near Uberaba, in the Serra de Galga Member of the Marília Formation (Bauru Group), dating to the late Maastrichtian stage of the Late Cretaceous, about 68-66 million years ago. A partial skull and several postcranial elements such as vertebrae and dermal plates from t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Montealtosuchus
''Montealtosuchus'' was an extinct genus of terrestrial crocodyliform.C. F. C. Geroto and R. J. Bertini. (2019). New material of ''Pepesuchus'' (Crocodyliformes; Mesoeucrocodylia) from the Bauru Group: implications about its phylogeny and the age of the Adamantina Formation. ''Zoological Journal of the Linnean Society'' 185(2):312-334 It was discovered in 2004 in the Bauru Basin of Brazil, from Campanian-Maastrichtian deposits of the Adamantina Formation. The species was described in 2007, and assigned to the family Peirosauridae. The type species is ''M. arrudacamposi''. The genus takes its name from the type locality in Monte Alto municipality. This fossil, which was found in 2004, near the town of Monte Alto, in São Paulo state is very well preserved and quite complete. Most importantly, skull material has been found and this can help to link this fossil specimen with today's modern crocodiles. It would have grown to about 2 metres in length and would have been an active p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barrosasuchus
''Barrosasuchus'' is a genus of peirosaurid notosuchian from the Santonian of Argentina and part of the extensive peirosaurid record of Late Cretaceous Patagonia. It contains one species, ''Barrosasuchus neuquenianus''. ''B. neuquenianus'' is known from an almost complete skull and the majority of the articulated postcranial skeleton, making it the best preserved Patagonian peirosaurid. Discovery and naming In February of 2001 the Museo Carmen Funes conducted a joint expedition with the Royal Tyrell Museum at the Sierra Barrosa Locality, 30km north-east of Plaza Huincul, Neuquén province. There the team uncovered the bones of dinosaurs and mammals, bird footprints and notably a nearly complete peirosaurid fossil from the Bajo de la Carpa Formation. The holotype, MCF-PV 413, was found lying on its ventral side, the skull articulated with the remaining skeleton which consisted of both forelimbs, most of the vertebral column up to the sacrals, one hindlimb and semi-articulate oste ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mesoeucrocodylia
Mesoeucrocodylia is the clade that includes Eusuchia and crocodyliforms formerly placed in the paraphyletic group Mesosuchia. The group appeared during the Early Jurassic, and continues to the present day. Diagnosis It was long known that Mesosuchia was an evolutionary grade, a hypothesis confirmed by the phylogenetic analysis of Benton and Clark (1988) which demonstrated that Eusuchia (which includes all living crocodylian species) was nested within Mesosuchia. Due to the paraphyly of Mesosuchia, Mesoeucrocodylia was erected to replace Mesosuchia. Several anatomical characteristics differentiate Mesoeucrocodylia from the other crocodylomorph clades. The frontal bones of the skull are fused together into a single compound element, for example. Mesoeucrocodylians possess something of a secondary palate, formed by the posterior extension of sutured palatine bones. The otic aperture of the members of this clade is blocked posteriorly by the squamosal bone. Classification Ph ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rukwasuchus
''Rukwasuchus'' is an extinct genus of peirosaurid mesoeucrocodylian known from the middle Cretaceous Galula Formation of southwestern Tanzania. It contains a single species, ''Rukwasuchus yajabalijekundu''. Discovery ''Rukwasuchus'' is known from its holotype, RRBP 08630, a well-preserved rear part of the skull including the cranial table, braincase, and interorbital region lacking the rostrum, the front portion of the palate, both lacrimals, jugals, and quadratojugals, as well as the mandible. RRBP 08630 was collected during 2008 at Namba 2 locality (also known as RRBP 2007-02), together with the titanosaurian '' Rukwatitan bisepultus'' which is exclusive to this locality. Material referred to ''Rukwasuchus'' includes four isolated teeth, which came from the neighboring localities RRBP 2007-01 yielding the 3 teeth RRBP 07351, 07369, 09362, and RRBP 2009-01 yielding the tooth RRBP 09367. All specimens came from approximately 25 km south of Lake Rukwa in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
