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| Genus: | Icanosaurus Rusconi, 1951 |
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Icanosaurus is an extinct genus of trematosaurian temnospondyl within the family Trematosauridae. [1]
Purranisaurus is an extinct genus of marine crocodyliform from the Middle to Late Jurassic period of Chile and Vaca Muerta of Argentina. Rusconi originally regarded Purranisaurus potens to be a plesiosaur; however, Gasparini demonstrated that it was in fact a metriorhynchid crocodyliform, and that may be a junior synonym of Metriorhynchus. It was about 3.3 m (11 ft) long.
Paleontology or palaeontology is the study of prehistoric life forms on Earth through the examination of plant and animal fossils. This includes the study of body fossils, tracks (ichnites), burrows, cast-off parts, fossilised feces (coprolites), palynomorphs and chemical residues. Because humans have encountered fossils for millennia, paleontology has a long history both before and after becoming formalized as a science. This article records significant discoveries and events related to paleontology that occurred or were published in the year 1958.
Almasaurus is an extinct genus of trematosaurian temnospondyl within the family Latiscopidae. It is known from several skulls and some postcranial material found from the Argana Formation in Morocco, which dates back to the Late Triassic.
Batrachosuchoides is an extinct genus of prehistoric amphibian from the Early Triassic of Russia. It was found in the Baskunchakskaia Series and the Lestanshorskaya Svita.
Batrachosaurus is an extinct genus of prehistoric brachyopoid amphibian that lived in Germany during the Middle Triassic (Ladinian). The genus was named by Joseph Fitzinger in 1837 and the type species, B. jaegeri, was named three years later in 1840. It may have been the same animal as Mastodonsaurus.
Deltacephalus is an extinct genus of prehistoric stereospondyl temnospondyl from Madagascar.
Inflectosuchus is an extinct genus of prehistoric amphibian.
Notobrachyops is a genus of brachyopid temnospondyl amphibian. It is known from a skull roof impression found in the Ashfield Shale of Mortdale, New South Wales, Australia. The Ashfield Shale has also yielded a shark species, a lungfish species, six species of paleoniscid fish, a species of holostean fish, a subholostean fish, and the labyrinthodont amphibian Paracyclotosaurus davidi.
Kestrosaurus, occasionally misspelt as Kerstisaurus, is an extinct genus of Triassic capitosauroid temnospondyl amphibian within the family Mastodonsauridae.
Montcellia is an extinct genus of nectridean lepospondyl within the family Urocordylidae that lived in the late Carboniferous period in the modern France.
Mahavisaurus is an extinct genus of rhytidosteid temnospondyl from the early Triassic period of Iraro, Madagascar. It is known from the holotype MNHN MAE 3037, a nearly complete skull, recovered from the Middle Sakamena Formation. This genus was named by J. P. Lehman in 1966, and the type species is Mahavisaurus dentatus.
Procochleosaurus is an extinct genus of cochleosaurid temnospondyl. Known from the Jarrow coal mines of Ireland, this genus is the oldest known member of the family Cochleosauridae. It was quite similar to Cochleosaurus, an early temnospondyl from the Czech Republic.
Peltostega is an extinct genus of prehistoric trematosaurians. The type is the only known species, Peltostega erici It is known from the Early Triassic Kongressfjellet Formation of Svalbard and Jan Mayen.
Schoenfelderpeton is an extinct genus of prehistoric amphibian. It is a sister taxon to Leptorophus tener.
Tertremoides is an extinct genus of trematosaurian temnospondyl within the family Trematosauridae from Madagascar. It was first named by Lehman, J-P. in 1966 as Trematosaurus madagascariensis but renamed to Tertremoides ambilobensis by Lehman in 1979. Its closest relative was Trematolestes.
Cunampaia is a dubious genus of extinct mesoeucrocodylian. Fossils have been found from the Divisadero Largo Formation of Mendoza Province, Argentina, and date back to the Divisaderan to Tinguirirican regional South American Land Mammal Age of the Late Eocene epoch.
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, and a locality in Mendoza, Argentina dating back to the Oligocene. Little material is known from the genus, with only the anterior portion of the skull being present to study.
Plagioscutum is an extinct genus of Middle Triassic temnospondyl amphibian from the Ladinian Inder Formation of Kazakhstan and the Anisian Donguz Formation of Russia.
Perleidiformes are an extinct order of prehistoric ray-finned fish from the Triassic period Although numerous Triassic taxa have been referred to Perleidiformes, which ones should be included for it to form a monophyletic group is a matter of ongoing scientific debate.
Allalmeia was a small notoungulate mammal of around 3 kilograms. It lived in Mendoza Province, Argentina during the Late Eocene. Allalmeia belonged to the Oldfieldthomasiidae family within the suborder Typotheria.
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