The new species belongs to the Lutrinae because of its possession of a large infraorbital canal and ventral expansion of the mastoid process, among other traits. Ces mammifères étaient donc bien plus grands que les loutres géantes actuelles (Pteronura brasiliensis), qui pèsent rarement plus d'une trentaine de kilogrammes[1], et deux à trois fois plus grands que n'importe quelle espèce de loutres modernes[3]. bounosa (Grohé et al. 2017) † S. thailandica (Ginsburg, Ingavat & Tassy, 1983) Siamogale est un genre éteint de loutres géantes du Miocène supérieur d'Asie. Two 3-D reconstructions show the jaw of the roughly 15-pound common otter (left) and that of the 110-pound Siamogale melilutra. Portion of an artist’s rendering of Siamogale melilutra. Size difference: Modern otters are a lot smaller than their prehistoric relatives (Rex) More. Journal of Systematic Palaeontology: Vol. Les Siamogale melilutra pesaient environ 50 kilogrammes et faisaient la taille d'un loup. World, meet Siamogale melilutra. Follow. Wang, Grohé, Su, White, Ji, Kelley, You & Yang, 2017, "Feeding capability in the extinct giant Siamogale melilutra and comparative mandibular biomechanics of living Lutrinae", "A new otter of giant size, Siamogale melilutra sp. That's far bigger than even … Le crâne montre une combinaison de caractères crâniens et dentaires semblables à ceux des loutres et semblables à ceux des blaireaux. Un article de Wikipédia, l'encyclopédie libre. Dr Su added: “The bones were so delicate that we could not physically restore the cranium. thailandica (Ginsburg, Ingavat & Tassy, 1983) †S. Siamogale melilutra est une espèce éteinte de loutres ayant vécu au Miocène supérieur (Messinien), il y a 6,2 millions d'années, dans la province chinoise du Yunnan[1]. Many otters today, like the marine otter or North American river otter, are about the size of a small dog. Remarque : l'espèce y est erronément appelée, https://fr.wikipedia.org/w/index.php?title=Siamogale_melilutra&oldid=175660445, Taxobox utilisant une classification non précisée, Taxobox taxon utilisant le paramètre éteint, Portail:Sciences de la Terre et de l'Univers/Articles liés, licence Creative Commons attribution, partage dans les mêmes conditions, comment citer les auteurs et mentionner la licence. The remains of the skull were found in China and were re-created with a special program called the CT scan which is able to reconstruct the skeleton without being damaged. Le nom générique, Siamogale, a été créé en 1983, lors de la description de Siamogale thailandica par Ginsburg, Ingavat et Tassy. Siamogale melilutra The wolf-size otter lived in a shallow swamp surrounded by thick vegetation. Illustration … Named Siamogale melilutra, the huge otter would have weighed around 110lb (50kg) and been up to two metres in length. S. melilutra was an otter. [2] Siamogale melilutra was about 1.9 m (6.25 ft) in overall length and weighed at least 40 kg (88 pounds). Unlike its modern counterparts which eat fish and shellfish, this prehistoric species had an appetite for just about any sort of prey and possessed powerful jaws capable of delivering a devastating bite. The researchers say the ancient predator belonged to a lineage of extinct otters that date back 18 million years. Read More: Dolphin-like fossil found in Texas could be reptile that swam 90m years ago “The discovery of the otter helps solve some questions about otter relationships, but has opened the door to new questions,” said Xiaoming Wang from the Natural History Museum of Los Angeles County in the US. Siamogale melilutra was the size of a wolf and weighed about 110 pounds (50kg). Vous pouvez partager vos connaissances en l’améliorant (comment ?) nov. (Lutrinae: Mustelidae: Carnivora), from the latest Miocene Shuitangba site in north-eastern Yunnan, south-western China, and a total-evidence phylogeny of lutrines", "Scientists Discover Prehistoric Giant Otter Species In China", https://en.wikipedia.org/w/index.php?title=Siamogale_melilutra&oldid=950439897, Creative Commons Attribution-ShareAlike License, This page was last edited on 12 April 2020, at 03:02. Siamogale melilutra was the size of a wolf and weighed about 110 pounds. TARKA the Otter had a formidable relative that was a top predator six million years ago, scientists have discovered. Deux espèces sont actuellement connues [1], dont Siamogale melilutra. By scanning each individual piece, researchers were able to digitally recreate the skull like a jigsaw puzzle. Two species are currently known, S. thailandica from Thailand and S. melilutra from China. At 50 kg in estimated weight, the extinct Siamogale melilutra is larger than all living otters, and ranks among the largest fossil otters. 16, No. 1, pp. “We started our study with the idea that this otter was just a larger version of a sea otter or an African clawless otter in terms of chewing ability, that it would just be able to eat much larger things. TARKA the Otter had a formidable ancestor which that was a top predator six million years ago and had a bite strong enough to snap bones, scientists have discovered. Siamogale thailandica Ginsburg, Invagat, & Tassy, 1983 from the middle Miocene basin of Mae Moh in northern Thailand is one such species, whose fragmentary dental remains have thus far impeded our understanding. selon les recommandations du projet zoologie. Three species are currently known, S. thailandica and S. bounosa from Thailand and S. melilutra from China. (Credit: Mauricio Anton) These ancient wolf-sized otters had fearsome jaws. The 6.2-million-year-old Siamogale melilutra otter dwarfed any known living otters, reaching weights of up to 110 pounds (50 kilograms). A new species of fossil otter, Siamogale melilutra sp. en 2017 et constitué des deux mots latins meles, « blaireau », et lutra, « loutre ». Its giant size and high mandibular strength confer shell-crushing capability matched only by other extinct molluscivores, such as the marine bear Kolponomos.[1]. Named Siamogale melilutra, the new species weighed around 50 kg (110 lbs) — almost twice as large as the largest living otters. Références. This is two to three times larger than any modern otter species. The scientists are working to understand other aspects of the life of Siamogale melilutra. †S. The otter named Siamogale melilutra lived some six million years ago and belongs to an ancient lineage of extinct otters, which goes back at least 18 million years. Credit: Mauricio Antón Temporal range: Late Miocene L’étude publiée dans The Journal of Systematic Paleontology : A new otter of giant size, Siamogale melilutra sp. Siamogale melilutra was about the size of a wolf. Ranking among the largest fossil otters, Siamogale represents a feeding ecomorphology with no living analog. This is two to three times larger than any modern otter species. Siamogale is an extinct genus of giant otter from the late Miocene-early Pliocene of eastern Asia. 2020) Siamogale is an extinct genus of giant otter from the late Miocene-early Pliocene of eastern Asia. † S. melilutra (Wang et al. It also had an unusually powerful bite, which would have allowed it to crush … See the full image below. Les restes du crâne ont été trouvés en Chine et ont été étudiés par tomodensitométrie, technique capable d'imager le squelette sans l'endommager. [3] The remains of the skull were found in China and were re-created with a special program called the CT scan which is able to reconstruct the skeleton without being damaged. References. L'épithète spécifique, melilutra, est pour sa part un nom composé attribué par Wang et al. Researchers say the outsized otter, called Siamogale melilutra, weighed about 50 kilograms and measured up to two metres long, making it bigger than any of its cousins alive today. Researchers were able to make assumptions about the otter’s physiology after recreating its skull, which had been crushed over millions of years. But S. melilutra was an outlier: The massive mammal’s modeled jaws were six times sturdier than expected. This strength, paired with the creature’s size, would have made it a formidable hunter. It weighed about 110 pounds and grew to be the size of a wolf. Some, like the sea otter or giant river otter, can grow to more than 75 pounds. The otter, which has been dubbed Siamogale melilutra, was much larger than today's otters at around the size of a wolf and weighed up to 50kg. X. Wang et al. Siamogale melilutra is an extinct species of giant otter from the late Miocene from Yunnan province, China. Ces mammifères étaient donc bien plus grands que les loutres géantes actuelles (Pteronura brasiliensis), qui pèsent rarement plus d'une trentaine de kilogrammes, et deux à trois fois plus grands que n'importe quelle espèce de loutres modernes. Diagnosis: Siamogale melilutra is distinct from S. thailandica in its large size, more posteriorly reclined mandibular ascending ramus, a continuous P4 protocone crest extending distally to the metastyle (in contrast to a more cuspidate P4 protocone in S. Instead, we CT-scanned the specimen and virtually reconstructed it in a computer. Siamogale melilutra is an extinct species of giant otter from the late Miocene from Yunnan province, China. Futurity News. It was estimated to about 50 kilograms (110 lb). La nouvelle espèce appartient aux Lutrinae en raison de la présence d'un large canal infraorbital et ventral expansion of the mastoid process, entre autres traits[2]. That’s not what we found,” says Z. Jack Tseng, PhD, who led the project. "If Siamogale melilutra was not smart enough to figure out tools, perhaps the only option left was to develop more powerful jaws by increasing body size." The otter, Siamogale melilutra, weighed about 110 pounds — bigger than any living otter. La dernière modification de cette page a été faite le 17 octobre 2020 à 17:36. Around 6 million years ago, giant otters (Siamogale melilutra) the size of wolves and weighing up 110 pounds (twice the size of modern-day otters) lived in what is now Asia. (2018). melilutra (Wang et al. Siamogale - WikiMili, The Free Encyclopedia - WikiMili, The Free Encyclopedia Siamogale melilutra was about the size of a wolf and weighed as much as 50 kg (more than 100 pounds). 2017) †S. Les Siamogale melilutra pesaient environ 50 kilogrammes et faisaient la taille d'un loup. The skull reveals a combination of otter-like and badger-like cranial and dental characteristics. Diagnosis: Siamogale melilutra is distinct from S. thailandica in its large size, more posteriorly reclined mandibular ascending ramus, a continuous P4 protocone crest extending distally to the metastyle (in contrast to a more cuspidate P4 protocone in S. nov. (Lutrinae: Mustelidae: Carnivora), from the latest Miocene Shuitangba site in north-eastern Yunnan, south-western China, and a total-evidence phylogeny of lutrines. 39-65. A really, really big otter. A new otter of giant size, Siamogale melilutra sp. nov. 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