About: Alierasaurus

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Alierasaurus is an extinct genus of caseid synapsid that lived during the early Middle Permian (Roadian) in what is now Sardinia. It is represented by a single species, the type species Alierasaurus ronchii. Known from a very large partial skeleton found within the , Alierasaurus is one of the largest known caseids. It closely resembles Cotylorhynchus, another giant caseid from the San Angelo Formation in Texas. The dimensions of the preserved foot elements and caudal vertebrae suggest an estimated total length of about 6 or 7 m (20 or 23 ft) for Alierasaurus. In fact, the only anatomical features that differ between Alierasaurus and Cotylorhynchus are found in the bones of the feet; Alierasaurus has a longer and thinner fourth metatarsal and it has ungual bones at the tips of the toes tha

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  • Alierasaurus is an extinct genus of caseid synapsid that lived during the early Middle Permian (Roadian) in what is now Sardinia. It is represented by a single species, the type species Alierasaurus ronchii. Known from a very large partial skeleton found within the , Alierasaurus is one of the largest known caseids. It closely resembles Cotylorhynchus, another giant caseid from the San Angelo Formation in Texas. The dimensions of the preserved foot elements and caudal vertebrae suggest an estimated total length of about 6 or 7 m (20 or 23 ft) for Alierasaurus. In fact, the only anatomical features that differ between Alierasaurus and Cotylorhynchus are found in the bones of the feet; Alierasaurus has a longer and thinner fourth metatarsal and it has ungual bones at the tips of the toes that are pointed and claw-like rather than flattened as in other caseids. Alierasaurus and Cotylorhynchus both have very wide, barrel-shaped rib cages indicating that they were herbivores that fed primarily on high-fiber plant material. (en)
  • Alierasaurus ronchii Alierasaurus Reconstitution d’Alierasaurus par Emiliano Troco. Genre † Alierasaurus (d) & (d), 2014 Espèce † Alierasaurus ronchii (d) & (d), 2014 Alierasaurus est un genre de synapsides Caseidae de très grande taille ayant vécu au début du Permien moyen (Roadien) dans ce qui est aujourd’hui le nord-ouest de la Sardaigne. Le genre n’est représenté que par son espèce type, Alierasaurus ronchii, fondée sur un squelette postcrânien partiel (MPUR NS 151) découvert dans la formation de Cala del Vino. Les dimensions des éléments préservés du pied et des vertèbres caudales suggèrent qu'Alierasaurus devait mesurer entre 6 et 7 m de longueur. Il était donc d'une taille comparable, voire supérieure, à celle de l'espèce géante nord-américaine Cotylorhynchus hancocki de la formation de San Angelo au Texas, dont la taille avoisinait les six mètres de longueur. Alierasaurus diffère du genre Cotylorhynchus principalement par l’anatomie des os du pied en ayant un quatrième métatarsien plus long et plus mince, ainsi qu’une phalange unguéale pointue et en forme de griffe au lieu d’être aplatie. Alierasaurus et Cotylorhynchus avaient tous les deux une très grande cage thoracique en forme de tonneau, indiquant qu’il s'agissait d'herbivores se nourrissant principalement de végétaux riches en fibres. (fr)
  • 알리에라사우루스(학명:Alerasaurus ronchii)는 도마뱀목 카세아과에 속하는 도마뱀이다. 지금은 멸종된 종으로서 전체적인 몸길이가 4~6m인 거대한 도마뱀에 속한다. (ko)
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dbp:align
  • right (en)
dbp:authority
  • Romano and Nicosia, 2014 (en)
dbp:direction
  • horizontal (en)
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  • Left: paleogeographic map of Earth at the end of the Paleozoic showing the known distribution of caseid synapsids. Right: close-up of the paleogeographic location of the caseid sites. 1 and 2 Ennatosaurus tecton, Arkhangelsk Oblast, Russia, late Roadian – early Wordian ; 3 Phreatophasma aenigmaticum, Bashkortostan, Russia, early Roadian ; 4 Datheosaurus macrourus Lower Silesian Voivodeship, Poland, Gzhelian ; 5 Martensius bromackerensis, Thuringia, Germany, Sakmarian ; 6 Callibrachion gaudryi, Saône-et-Loire, France, Asselian ; 7 Euromycter rutenus and Ruthenosaurus russellorum, Aveyron, France, late Artinskian ; 8 Lalieudorhynchus gandi, Hérault, France, Wordian – early Capitanian ; 9 Alierasaurus ronchii, Nurra, Sardinia, Italy, Roadian ; 10 Eocasea martini, Greenwood County, Kansas, late Pennsylvanian ; 11 Angelosaurus romeri and Cotylorhynchus bransoni, Kingfisher County, Oklahoma, early Roadian ; 12 Cotylorhynchus bransoni, Blaine County, Oklahoma, early Roadian ; 13 Cotylorhynchus romeri, Logan County, Oklahoma, mid-late Kungurian ; 14 Cotylorhynchus romeri, Cleveland County, Oklahoma, mid-late Kungurian ; 15 Oromycter dolesorum and Arisierpeton simplex, Comanche County, Oklahoma, early Artinskian ; 16 Cotylorhynchus hancocki, Hardeman County, Texas, late Kungurian – early Roadian ; 17 Cotylorhynchus hancocki, Angelosaurus dolani, A. greeni, Caseoides sanangeloensis, and Caseopsis agilis, Knox County, Texas, late Kungurian – early Roadian ; 18 Casea broilii, Baylor County, Texas, mid-late Kungurian. (en)
dbp:fossilRange
  • early Middle Permian (en)
dbp:genus
  • Alierasaurus (en)
dbp:height
  • 100 (xsd:integer)
dbp:image
  • Distribution of caseid synapsids in late Paleozoic Pangea.jpg (en)
  • Distribution of caseid synapsids in late Paleozoic Pangea detail.jpg (en)
dbp:imageCaption
  • Reconstruction of Alierasaurus by Emiliano Troco. (en)
dbp:parentAuthority
  • Romano and Nicosia, 2014 (en)
dbp:species
  • ronchii (en)
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  • 알리에라사우루스(학명:Alerasaurus ronchii)는 도마뱀목 카세아과에 속하는 도마뱀이다. 지금은 멸종된 종으로서 전체적인 몸길이가 4~6m인 거대한 도마뱀에 속한다. (ko)
  • Alierasaurus is an extinct genus of caseid synapsid that lived during the early Middle Permian (Roadian) in what is now Sardinia. It is represented by a single species, the type species Alierasaurus ronchii. Known from a very large partial skeleton found within the , Alierasaurus is one of the largest known caseids. It closely resembles Cotylorhynchus, another giant caseid from the San Angelo Formation in Texas. The dimensions of the preserved foot elements and caudal vertebrae suggest an estimated total length of about 6 or 7 m (20 or 23 ft) for Alierasaurus. In fact, the only anatomical features that differ between Alierasaurus and Cotylorhynchus are found in the bones of the feet; Alierasaurus has a longer and thinner fourth metatarsal and it has ungual bones at the tips of the toes tha (en)
  • Alierasaurus ronchii Alierasaurus Reconstitution d’Alierasaurus par Emiliano Troco. Genre † Alierasaurus (d) & (d), 2014 Espèce † Alierasaurus ronchii (d) & (d), 2014 Alierasaurus est un genre de synapsides Caseidae de très grande taille ayant vécu au début du Permien moyen (Roadien) dans ce qui est aujourd’hui le nord-ouest de la Sardaigne. (fr)
rdfs:label
  • Alierasaurus (en)
  • Alierasaurus (fr)
  • 알리에라사우루스 (ko)
  • Alierasaurus (nl)
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