Ostafrikasaurus (original) (raw)
Ostafrikasaurus ("ještěr z Německé východní Afriky") byl masožravý teropodní dinosaurus z čeledi Spinosauridae, žijící v období svrchní jury (asi před 150 miliony let) na území dnešní Tanzanie (souvrství Tendaguru).
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| dbo:abstract | Ostafrikasaurus ("ještěr z Německé východní Afriky") byl masožravý teropodní dinosaurus z čeledi Spinosauridae, žijící v období svrchní jury (asi před 150 miliony let) na území dnešní Tanzanie (souvrství Tendaguru). (cs) Ostafrikasaurus crassiserratus es la única especie conocida del género extinto Ostafrikasaurus de dinosaurio terópodo probablemente espinosáurido que vivió a finales del período Jurásico, hace aproximadamente 145 millones de años, durante el Titoniense, en lo que es hoy África. Sus restos se encontraron en Tendaguru al sureste de Tanzania. (es) Ostafrikasaurus is a genus of theropod dinosaur from the Late Jurassic period of what is now Lindi Region, Tanzania. It is known only from fossil teeth discovered sometime between 1909 and 1912, during an expedition to the Tendaguru Formation by the Natural History Museum of Berlin. Eight teeth were originally attributed to the dubious dinosaur genus Labrosaurus, and later to Ceratosaurus, both known from the North American Morrison Formation. Subsequent studies attributed two of these teeth to a spinosaurid dinosaur, and in 2012, Ostafrikasaurus crassiserratus was named by French palaeontologist Eric Buffetaut, with one tooth as the holotype, and the other referred to the same species. The generic name comes from the German word for German East Africa, the former name of the colony in which the fossils were found, while the specific name comes from the Latin words for "thick" and "serrated", in reference to the form of the animal's teeth. Ostafrikasaurus has been tentatively estimated at 8.4 metres (28 feet) long and weighing 1.15 tonnes (1.27 short tons; 1.13 long tons). The holotype tooth is 46 millimetres (1.8 inches) long, has a curved front edge, and is oval-shaped in cross section. The tooth shows serrations that—for spinosaur standards—are unusually large, more so than in any other known taxon. Both the front and back cutting edges are serrated, with two to four denticles per mm (0.04 in). The tooth also has longitudinal ridges on both sides, and the outermost enamel layer has a wrinkled texture in the regions between and without ridges. Among the oldest known spinosaurid fossils, Ostafrikasaurus may be of importance in understanding the evolutionary origins of spinosaurids and their anatomical adaptations. From comparisons with its later relatives, Ostafrikasaurus indicates that spinosaur teeth became more conical and lost their serrations throughout their evolution. This is possibly a result of becoming more specialized for a piscivorous (fish-eating) diet, as has been suggested for the family based on fossil evidence and the semiaquatic adaptations exhibited by many species. They are also known to have fed on pterosaurs and other dinosaurs. Ostafrikasaurus lived in a subtropical to tropical environment alongside many other dinosaurs, as well as pterosaurs, crocodyliforms, fish, mammals, and invertebrates. Due to its age and location, Ostafrikasaurus indicates spinosaurids may have been globally distributed prior to the breakup of Pangaea. (en) Ostafrikasaurus est un genre éteint de dinosaures théropodes du Jurassique retrouvé à Tendaguru, dans le sud-est de la Tanzanie. La seule espèce connue, l'espèce type, Ostafrikasaurus crassiserratus, a été décrite par Éric Buffetaut en 2013. Le nom générique associe l'allemand Deutsch-Ostafrika, qui désigne l'Afrique orientale allemande, avec le grec σαῦρος (sauros, « lézard »). Le nom spécifique est tiré des mots latins crassus (« épais ») et serratus (« en dents de scie ») L'holotype, MB R 1084, est constitué d'une seule dent. Ostafrikasaurus est classé dans les Spinosauridae, dont il serait le plus « vieux » membre. (fr) 오스트아프리카사우루스(Ostafrikasaurus)는 탄자니아 남동부 텐다구루의 쥐라기로부터 알려진 스피노사우루스과의 공룡이다. 그것은 단일 종인 오스트아프리카사우루스 크라세리세라라투스(Ostafrikasaurus crassiserratus)를 포함하고 있다. 오스트아프리카사우루스는 잠정적으로 몸길이가 8.4 미터, 몸무게가 1.15 톤으로 추정된다. 완모식 이빨은 길이가 46mm이고 앞 가장자리가 구부러져 있으며 단면이 타원형이다. 이빨은 스피노사우루스의 기준에서 볼 때, 다른 어떤 분류군보다도 매우 큰 톱니 모양을 보여준다. 앞면 및 뒷면 절삭 가장자리는 톱니 모양으로, mm당 2~4인치(0.04인치)의 틀니가 있다. 치아는 또한 양쪽에 세로 방향으로 돌출되어 있고, 가장 바깥쪽의 에나멜 층은 돌출부 사이와 없는 부분에 주름진 질감을 가지고 있다. 가장 오래된 스피노사우루스과 화석 중 오스트아프리카사우루스는 스피노사우루스과의 진화적 기원과 해부학적 적응을 이해하는 데 중요한 화석일 것이다. 이후의 친척들과 비교했을 때, 오스트아프리카사우루스는 스피노사우루스의 이빨이 진화를 거치면서 더 원뿔형이 되고 톱니가 없어졌음을 나타낸다. 이것은 아마도 화석 증거와 많은 종들이 보여주는 반수생 적응에 기초하여 이 과에 제안되어 온 것처럼 물고기를 먹는 식생활에 더 특화된 결과일 것이다. 그들은 익룡과 다른 공룡들을 먹었던 것으로도 알려져 있다. 오스트아프리카사우루스는 익룡, 악어, 어류, 포유류, 무척추동물뿐만 아니라 많은 다른 공룡들과 함께 아열대 또는 열대 환경에서 살았다. 나이와 위치 때문에 오스트아프리카사우루스는 스피노사우루스과 공룡들이 판게아가 분열되기 전에 전 세계에 분포했을 수 있다는 것을 시사한다. (ko) Ostafrikasaurus (il cui nome significa "lucertola di Ostafrika") è un genere estinto di dinosauro spinosauroide spinosauridae vissuto nel Giurassico superiore, circa 148–145.5 milioni di anni fa, in Tanzania, Africa. L'unica specie ascritta a questo genere è O. crassiserratus. (it) オスタフリカサウルス Ostafrikasaurus は、タンザニア南部にあるジュラ紀後期の地層から知られる獣脚類スピノサウルス科に属する恐竜の属である。オスタフリカサウルス・クラッシセラトゥス Ostafrikasaurus crassiserratus一種のみで知られている。 (ja) Ostafrikasaurus is een geslacht van vleesetende theropode dinosauriërs, behorend tot de groep van de Spinosauroidea, dat tijdens het late Jura leefde in het gebied van het huidige Afrika. De enige benoemde soort is Ostafrikasaurus crassiserratus uit de Tendaguru Formatie van zuidoost Tanzania. (nl) Ostafrikasaurus – mięsożerny dinozaur z późnego okresu jurajskiego. Obecnie jest znany tylko z jednego zęba znalezionego przez Erica Buffetauta w roku 2012. Jeśli Ostafrikasaurus był z rodziny spinozaurów byłoby jedynym znanym spinozaurem żyjącym w jurze. Wielkość Ostafrikasaurus'a nie jest znana, lecz ząb ma długość 49 mm. (pl) Ostafrikasaurus (лат.) — род динозавров-теропод, обычно рассматриваемый внутри семейства спинозаврид. Включает единственный вид — Ostafrikasaurus crassiserratus, известный по изолированным зубам из юрских отложений формации Тендагуру, юго-восточная Танзания. Согласно исследованию Smyth et. al., 2020, таксон является сомнительным (nomen dubium) по причине фрагментарности материала и отсутствия у приписанных ему остатков характерных признаков спинозаврид. (ru) Ostafrikasaurus é um gênero de dinossauro carnívoro terópode da família Spinosauridae. A espécie-tipo é denominada Ostafrikasaurus crassiserratus. Seus restos fósseis foram encontrados ao redor de , no sudeste da Tanzânia, e datam do Jurássico Superior. (pt) 東非龍屬（學名：Ostafrikasaurus）是獸腳亞目棘龍科的一屬，生存於侏羅紀晚期的東非，目前只有唯一種，厚鋸齒東非龍（O. crassiserratus）。東非龍是目前已知生存時代最早的棘龍科恐龍。 (zh) |
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| rdfs:comment | Ostafrikasaurus ("ještěr z Německé východní Afriky") byl masožravý teropodní dinosaurus z čeledi Spinosauridae, žijící v období svrchní jury (asi před 150 miliony let) na území dnešní Tanzanie (souvrství Tendaguru). (cs) Ostafrikasaurus crassiserratus es la única especie conocida del género extinto Ostafrikasaurus de dinosaurio terópodo probablemente espinosáurido que vivió a finales del período Jurásico, hace aproximadamente 145 millones de años, durante el Titoniense, en lo que es hoy África. Sus restos se encontraron en Tendaguru al sureste de Tanzania. (es) Ostafrikasaurus (il cui nome significa "lucertola di Ostafrika") è un genere estinto di dinosauro spinosauroide spinosauridae vissuto nel Giurassico superiore, circa 148–145.5 milioni di anni fa, in Tanzania, Africa. L'unica specie ascritta a questo genere è O. crassiserratus. (it) オスタフリカサウルス Ostafrikasaurus は、タンザニア南部にあるジュラ紀後期の地層から知られる獣脚類スピノサウルス科に属する恐竜の属である。オスタフリカサウルス・クラッシセラトゥス Ostafrikasaurus crassiserratus一種のみで知られている。 (ja) Ostafrikasaurus is een geslacht van vleesetende theropode dinosauriërs, behorend tot de groep van de Spinosauroidea, dat tijdens het late Jura leefde in het gebied van het huidige Afrika. De enige benoemde soort is Ostafrikasaurus crassiserratus uit de Tendaguru Formatie van zuidoost Tanzania. (nl) Ostafrikasaurus – mięsożerny dinozaur z późnego okresu jurajskiego. Obecnie jest znany tylko z jednego zęba znalezionego przez Erica Buffetauta w roku 2012. Jeśli Ostafrikasaurus był z rodziny spinozaurów byłoby jedynym znanym spinozaurem żyjącym w jurze. Wielkość Ostafrikasaurus'a nie jest znana, lecz ząb ma długość 49 mm. (pl) Ostafrikasaurus (лат.) — род динозавров-теропод, обычно рассматриваемый внутри семейства спинозаврид. Включает единственный вид — Ostafrikasaurus crassiserratus, известный по изолированным зубам из юрских отложений формации Тендагуру, юго-восточная Танзания. Согласно исследованию Smyth et. al., 2020, таксон является сомнительным (nomen dubium) по причине фрагментарности материала и отсутствия у приписанных ему остатков характерных признаков спинозаврид. (ru) Ostafrikasaurus é um gênero de dinossauro carnívoro terópode da família Spinosauridae. A espécie-tipo é denominada Ostafrikasaurus crassiserratus. Seus restos fósseis foram encontrados ao redor de , no sudeste da Tanzânia, e datam do Jurássico Superior. (pt) 東非龍屬（學名：Ostafrikasaurus）是獸腳亞目棘龍科的一屬，生存於侏羅紀晚期的東非，目前只有唯一種，厚鋸齒東非龍（O. crassiserratus）。東非龍是目前已知生存時代最早的棘龍科恐龍。 (zh) Ostafrikasaurus is a genus of theropod dinosaur from the Late Jurassic period of what is now Lindi Region, Tanzania. It is known only from fossil teeth discovered sometime between 1909 and 1912, during an expedition to the Tendaguru Formation by the Natural History Museum of Berlin. Eight teeth were originally attributed to the dubious dinosaur genus Labrosaurus, and later to Ceratosaurus, both known from the North American Morrison Formation. Subsequent studies attributed two of these teeth to a spinosaurid dinosaur, and in 2012, Ostafrikasaurus crassiserratus was named by French palaeontologist Eric Buffetaut, with one tooth as the holotype, and the other referred to the same species. The generic name comes from the German word for German East Africa, the former name of the colony in whi (en) Ostafrikasaurus est un genre éteint de dinosaures théropodes du Jurassique retrouvé à Tendaguru, dans le sud-est de la Tanzanie. La seule espèce connue, l'espèce type, Ostafrikasaurus crassiserratus, a été décrite par Éric Buffetaut en 2013. Le nom générique associe l'allemand Deutsch-Ostafrika, qui désigne l'Afrique orientale allemande, avec le grec σαῦρος (sauros, « lézard »). Le nom spécifique est tiré des mots latins crassus (« épais ») et serratus (« en dents de scie ») L'holotype, MB R 1084, est constitué d'une seule dent. (fr) 오스트아프리카사우루스(Ostafrikasaurus)는 탄자니아 남동부 텐다구루의 쥐라기로부터 알려진 스피노사우루스과의 공룡이다. 그것은 단일 종인 오스트아프리카사우루스 크라세리세라라투스(Ostafrikasaurus crassiserratus)를 포함하고 있다. 오스트아프리카사우루스는 잠정적으로 몸길이가 8.4 미터, 몸무게가 1.15 톤으로 추정된다. 완모식 이빨은 길이가 46mm이고 앞 가장자리가 구부러져 있으며 단면이 타원형이다. 이빨은 스피노사우루스의 기준에서 볼 때, 다른 어떤 분류군보다도 매우 큰 톱니 모양을 보여준다. 앞면 및 뒷면 절삭 가장자리는 톱니 모양으로, mm당 2~4인치(0.04인치)의 틀니가 있다. 치아는 또한 양쪽에 세로 방향으로 돌출되어 있고, 가장 바깥쪽의 에나멜 층은 돌출부 사이와 없는 부분에 주름진 질감을 가지고 있다. (ko) |
| rdfs:label | Ostafrikasaurus (cs) Ostafrikasaurus crassiserratus (es) Ostafrikasaurus crassiserratus (it) Ostafrikasaurus (fr) 오스트아프리카사우루스 (ko) オスタフリカサウルス (ja) Ostafrikasaurus (en) Ostafrikasaurus (nl) Ostafrikasaurus (pl) Ostafrikasaurus (pt) Ostafrikasaurus (ru) 東非龍屬 (zh) |
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