Английская Википедия:Habrosaurus
Шаблон:Short description Шаблон:Distinguish Шаблон:Automatic taxobox
Habrosaurus (Шаблон:IPA-all, meaning "graceful lizard") is an extinct genus of prehistoric salamanders, and the oldest known member of the family Sirenidae. Two species are known, H. prodilatus from the middle Campanian Dinosaur Park Formation of Alberta,[1] and H. dilatus from the late Maastrichtian and Paleocene of western North America. It is relatively common in the Lance Formation of Wyoming, and less common in the Hell Creek Formation of Montana.
Description
Habrosaurus was a gigantic sirenid,[2] its length is estimated to be around Шаблон:Cvt, estimated from its trunk vertebrae length (up to 2 cm long).[3] H. prodilatus possessed chisel-like teeth, while H. dilatus had bulkier crowns. The teeth of H. dilatus also exhibited heavy wear facets while those of H. prodilatus had only mild wear, suggesting that H. dilatus was more adapted for durophagy than H. prodilatus. H. dilatus may have preyed upon arthropods with hard carapaces as well as mollusks.[1]
Classification
Habrosaurus is a sister taxa to both Pseudobranchus and Siren[1] which are the only genera in the family Sirenidae. Sirenids are classified by their neotenous traits (complete lack of hindlimbs and external gills in both larval and adult states).
References
- ↑ 1,0 1,1 1,2 Ошибка цитирования Неверный тег
<ref>; для сносокGardnerне указан текст - ↑ Bonett, R. M., Trujano-Alvarez, A. L., Williams, M. J. & Timpe, E. K. 2013. Biogeography and body size shuffling of aquatic salamander communities on a shifting refuge. Proceedings of the Royal Society B 280, 20130200.
- ↑ Шаблон:Cite book
- Английская Википедия
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- Sirenoidea
- Prehistoric amphibian genera
- Prehistoric salamanders
- Late Cretaceous amphibians
- Cretaceous amphibians of North America
- Late Cretaceous animals of North America
- Campanian genus first appearances
- Paleocene genus extinctions
- Cretaceous–Paleogene boundary
- Cretaceous United States
- Hell Creek fauna
- Lance fauna
- Fossil taxa described in 1933
- Taxa named by Charles W. Gilmore
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- Википедия
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- Статья из Английской Википедии
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