Английская Википедия:Clasmodosaurus
Шаблон:Short description Шаблон:Speciesbox
Clasmodosaurus (meaning "fragmentary tooth reptile") is a genus of titanosaurian sauropod dinosaur from the Bajo Barreal Formation.[1] It lived during the Late Cretaceous in what is now Argentina. It is known only from three fossilized teeth, and is therefore a tooth taxon. It is a nomen dubium.[2][3]
The type species, Clasmodosaurus spatula, was described by Argentine paleontologist Florentino Ameghino in 1898. For a long time, these teeth were thought to belong to a theropod. The teeth of Clasmodosaurus spatula were polygonal in cross section rather than round, an unusual trait also found in the titanosaur Bonitasaura salgadoi.[4]
History
Clasmodosaurus was named by Florentino Ameghino in 1898, but remained largely unknown for decades after its discovery.[5] It was originally considered a sauropod, but Friedrich von Huene suggested that it could be a coelurosaur or synonymous with Loncosaurus, which he considered to be a carnosaur.[6] Like Loncosaurus, its taxonomy remained unclear with it regarded as a theropod on the rare occasions it was mentioned.[6] However, Jaime Powell suggested that it was a dubious genus of sauropod in 1986, an identification which has been accepted since. Like diplodocoids and titanosaurs, it had narrow tooth crowns, and it is typically regarded as a titanosaur like most Late Cretaceous sauropods.[6]
References
Шаблон:Sauropodomorpha Шаблон:Taxonbar
- ↑ "63.2 Provincia de Chubut, Argentina; 2. Bajo Barreal Formation," in Weishampel, et al. (2004). Page 602.
- ↑ Ошибка цитирования Неверный тег
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; для сносокDinosauria
не указан текст - ↑ Clasmodosaurus
- ↑ Ошибка цитирования Неверный тег
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; для сносокBonitasaura
не указан текст - ↑ Ошибка цитирования Неверный тег
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; для сносокHuene1929
не указан текст - ↑ 6,0 6,1 6,2 Ошибка цитирования Неверный тег
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; для сносокPowell2003
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- Английская Википедия
- Titanosaurs
- Late Cretaceous dinosaurs of South America
- Cretaceous Argentina
- Fossils of Argentina
- Fossil taxa described in 1898
- Taxa named by Florentino Ameghino
- Nomina dubia
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