| 翻訳と辞書 |
| Delorhynchus priscus ： ウィキペディア英語版 |
Delorhynchus
''Delorhynchus'' is an extinct genus of lanthanosuchoid parareptile known from the late Early Permian (Kungurian age) Garber Formation of Comanche County, Oklahoma, south-central USA. It contains the type species ''D. priscus'' as well as a better preserved second species ''D. cifellii''.
==Discovery==
The type species ''D. priscus'' is known from the holotype KU 11117, a fragmentary left maxilla bearing 4 teeth, and from the fragmentary referred specimens KU 11118 and KU 11119, a right and a left maxillae respectively, each bearing 4 teeth. All known specimens of ''D. priscus'' are housed at the University of Kansas Natural History Museum in Lawrence, Kansas.〔 Unlike the type species, ''D. cifellii'' is known from a well-preserved partial subadult skeleton, an isolated adult skull, and other disarticulated elements, all housed at the Oklahoma Museum of Natural History. The subadult individual preserves both the partial skull and the postcranial remains in articulation, and thus was chosen as the holotype, represented by OMNH 73515. OMNH 73362 represents the complete skull of the large, adult, individual. Other remains referred to ''D. cifellii'' include OMNH 73363, a complete right mandibular ramus of an individual equal in size to OMNH 73362, as well as the right maxilla OMNH 73524.〔
Both species of ''Delorhynchus'' are known only from the claystone and conglomerate Oklahoma Museum of Natural History (OMNH) Locality V51, at Dolese Brothers limestone quarry of Richards Spur, Fissure Fills, just west of U.S. Highways 62 & 281, 10.5 miles south of Apache and 6 miles north of Fort Sill, of Comanche County, Oklahoma. The remains of both species were collected from the Garber Formation (also known as the Willington Formation) of Summer Group, Arbuckle limestone, which is probably equivalent to the Arroyo Formation of Texas, dating to the middle Leonardian stage, of the upper Rotliegend epoch, Early Permian, about 275 million years ago.〔
The Richards Spur locality presents a very rich Early Permian vertebrate paleofauna, including species of chondrichthyes, Lepospondyli, seymouriamorphs, basal synapsids, basal eureptiles and six species of parareptiles apart from the two ''Delorhynchus'' species, including the basal ''Microleter mckinzieorum'', the bolosaurid ''Bolosaurus grandis'', the nyctiphruretid ''Abyssomedon williamsi'', and three other lanthanosuchoids including ''Colobomycter pholeter'', ''Feeserpeton oklahomensis'', and an unnamed new species of Acleistorhinidae.
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「Delorhynchus」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.
|
|