翻訳と辞書
Words near each other
・ Aegiphila sordida
・ Aegir (disambiguation)
・ Aegir (moon)
・ Aegir Hosting System
・ Aegir Ridge
・ Aegir Steinarsson
・ Aegir Wave Farm
・ Aegires
・ Aegires gardineri
・ Aegires minor
・ Aegires ninguis
・ Aegires punctilucens
・ Aegires villosus
・ Aegirine
・ Aegirocassis
Aegirosaurus
・ Aegis
・ AEGIS (astronomy)
・ Aegis (band)
・ Aegis (comics)
・ Aegis (company)
・ Aegis (disambiguation)
・ Aegis (Lady of All Sorrows)
・ Aegis (management software)
・ Aegis (newspaper)
・ AEGIS (Ragnarok Online)
・ AEGIS (research network)
・ Aegis Ballistic Missile Defense System
・ Aegis Combat System
・ Aegis Defence Services


Dictionary Lists
翻訳と辞書 辞書検索 [ 開発暫定版 ]
スポンサード リンク

Aegirosaurus : ウィキペディア英語版
Aegirosaurus

''Aegirosaurus'' is an extinct genus of platypterygiine ophthalmosaurid ichthyosaur known from the Late Jurassic and Early Cretaceous of Europe.
==Discovery and species==
Originally described by Wagner (1853) as a species of the genus ''Ichthyosaurus'' (''I. leptospondylus''), the species ''Aegirosaurus leptospondylus'' has had an unstable taxonomic history. It has been referred to the species ''Ichthyosaurus trigonus posthumus'' (later reclassified in the dubious genus ''Macropterygius'') in the past, and sometimes identified with ''Brachypterygius extremus''. In 2000, Bardet and Fernández selected a complete skeleton in a private collection as the neotype for the species ''I. leptospondylus'', as the only other described specimen was destroyed in World War II. A second specimen from the Munich collection was referred to the same taxon. Bardet and Fernández concluded that the neotype should be assigned to a new genus, ''Aegirosaurus''. The name means 'Aegir (teutonic god of the ocean) lizard with slender vertebrae'.
Within Ophthalmosauridae, scientists once believed ''Aegirosaurus'' was most closely related to ''Ophthalmosaurus''. However, many recent cladistic analyses found it is more closely related to ''Sveltonectes'' (and probably to ''Undorosaurus''). ''Aegirosaurus'' lineage was found to include ''Brachypterygius'' and ''Maiaspondylus'' too, and to nest within Platypterygiinae, which is the sister taxon of Ophthalmosaurinae.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「Aegirosaurus」の詳細全文を読む



スポンサード リンク
翻訳と辞書 : 翻訳のためのインターネットリソース

Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.