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Eunotosaurus (Latin: Stout-backed lizard) is an extinct genus of amniote, possibly a close relative of turtles. Eunotosaurus lived in the late Middle Permian (Capitanian stage) and fossils can be found in the Karoo Supergroup of South Africa. Eunotosaurus resided in the swamps of southern Africa. Its ribs were wide and flat, forming broad plates similar to a primitive turtle shell, and the vertebrae were nearly identical to those of some turtles. Accordingly, it is often considered as a possible transitional fossil between turtles and their prehistoric ancestors. However, it is possible that these turtle-like features evolved independently of the same features in turtles, since other anatomical studies and phylogenetic analyses suggest that Eunotosaurus may instead have been a parareptile,

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rdf:type
rdfs:label
  • Eunotosaurus (en)
  • Eunotosaurus (de)
  • Eunotosaurus (es)
  • Eunotosaurus (fr)
  • Eunotosaurus (nl)
  • Eunotosaurus (pt)
  • 正南龜屬 (zh)
rdfs:comment
  • Eunotosaurus africanus Eunotosaurus Une vue d'artisted'Eunotosaurus africanus. Genre † Eunotosaurus(Seeley, 1892) Espèce † Eunotosaurus africanus(Seeley, 1892) Eunotosaurus est un genre éteint de reptiles ressemblant à une tortue et ayant vécu à la fin du Guadalupéen (époque du Permien), en Afrique du Sud, il y a environ entre 265 et 260 Ma (millions d'années). Une seule espèce est rattachée au genre : Eunotosaurus africanus, décrite par Seeley en 1892. (fr)
  • Eunotosaurus is een geslacht van reptielachtige sauropsida uit het Midden-Perm (265.1-259.9 miljoen jaar geleden) van de Karoosupergroep in Zuid-Afrika. Hun vertegenwoordigers werden gekenmerkt door verbrede en verminderde ribbogen en een afgerond lichaam. Het geslacht heeft historisch en heden een belangrijke rol gespeeld in de poging om de evolutie van schildpadden van hun prehistorische voorouders te begrijpen. Veel fossielen hadden een halfstugge, schildpadachtige borst, waardoor het waarschijnlijk noodzakelijk was om te bewegen zoals de schildpadden. (nl)
  • Eunotosaurus foi um gênero de réptil primitivo que viveu na África subsariana no período Permiano. O réptil é a resposta da evolução das tartarugas de hoje em dia, por ter sido descoberto um registro de um casco primitivo. (pt)
  • 正南龜(學名:Eunotosaurus)是副爬行動物的一屬,生存於二疊紀中期的南非,在過去的古生物學裡,曾長期被認為是史前爬行動物與現代烏龜的遺失連結,曾長期被認為是最原始的龜鱉目。 正南龜的化石發現於南非(Karoo Supergroup),地質年代相當於二疊紀中期的。許多化石的肋腔類似現代烏龜、稍微不易彎曲,因此正南龜被認為會以類似烏龜的方式行走。肋骨非常寬廣而平坦、前後肋骨互相接觸,因此正南龜的身體寬廣,外形類似具有龜殼的烏龜。此外,正南龜的脊椎數量、脊椎大小、脊椎結構非常類似某些現代烏龜。儘管正南龜的身體外形類似現代烏龜,牠們的頭顱骨有許多原始特徵,類似原始無孔亞綱爬行動物。目前古生物學界將正南龜歸類於副爬行動物演化支,不再普遍認為是烏龜的史前遠祖。正南龜的脊椎構造、寬廣肋骨,被認為是跟龜鱉目的平行演化結果。 (zh)
  • Eunotosaurus (Latin: Stout-backed lizard) is an extinct genus of amniote, possibly a close relative of turtles. Eunotosaurus lived in the late Middle Permian (Capitanian stage) and fossils can be found in the Karoo Supergroup of South Africa. Eunotosaurus resided in the swamps of southern Africa. Its ribs were wide and flat, forming broad plates similar to a primitive turtle shell, and the vertebrae were nearly identical to those of some turtles. Accordingly, it is often considered as a possible transitional fossil between turtles and their prehistoric ancestors. However, it is possible that these turtle-like features evolved independently of the same features in turtles, since other anatomical studies and phylogenetic analyses suggest that Eunotosaurus may instead have been a parareptile, (en)
  • Eunotosaurus ist eine Gattung reptilien­artiger Sauropsiden aus dem mittleren Perm (265,1–259,9 mya) der Karoo-Supergruppe Südafrikas. Ihre Vertreter zeichneten sich durch verbreiterte und zahlenmäßig reduzierte Rippenbögen und einen rundlichen Körper aus. Die Gattung nimmt historisch wie aktuell eine bedeutende Rolle im Versuch des Verständnisses der Evolution der Schildkröten aus ihren prähistorischen Vorfahren ein. Viele Fossilien wiesen einen halbstarren, schildkrötenähnlichen Brustkorb auf, der vermutlich eine Fortbewegung nach Art der Landschildkröten notwendig machte. (de)
  • Eunotosaurus es un género de saurópsido extinto perteneciente al clado Pantestudines y considerado como un antepasado de las tortugas. Vivió durante el Pérmico entre unos 265 a 251 millones de años. En cuanto a sus características anatómicas: sus costillas eran anchas y planas, formando placas anchas similares a los caparazones de las tortugas primitivas y las vértebras eran casi idénticas a las de algunas tortugas, ​ su cráneo tenía dos fosas temporales igual a los diápsidos, junto con Pappochelys ayudaron a reforzar la hipótesis molecular de que las tortugas no eran anápsidos o parareptiles como muchos especialistas pensaban sino que eran convergentes con ellos. ​ (es)
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  • http://commons.wikimedia.org/wiki/Special:FilePath/Eunotosaurus.jpg
  • http://commons.wikimedia.org/wiki/Special:FilePath/Eunotosaurus_africanus.jpg
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