| 词条 | Hadrianus (genus) |
| 释义 |
| fossil_range = {{fossilrange|55.4|33.9}} Eocene[1] | image = Hadrianus majusculus.jpg | image_alt = "Hadrianus majusculus" | image_caption = Hadrianus majusculus | taxon = Hadrianus | authority = Cope, 1872[2][1] | display_parents = 3 | synonyms = | synonyms_ref = | subdivision_ranks = Species | subdivision =
}}Hadrianus is an extinct genus of tortoise belonging to the Testudinidae[1] found in the United States and Spain and believed to be the oldest true tortoise known.[3] The genus is thought to be closely related to the genus Manouria.[3] The genus may have evolved in the subtropics of Asia and subsequently migrated to North America and Europe.[3] References1. ^1 2 {{cite web|url=http://fossilworks.org/bridge.pl?action=taxonInfo&taxon_no=58498&is_real_user=1|title=Fossilworks: Hadrianus|author=|date=|website=fossilworks.org|accessdate=19 February 2019}} {{Portal|Paleontology|Turtles}}{{Extinct turtles}}{{Taxonbar|from=Q5638062}}{{DEFAULTSORT:Hadrianus (Genus)}}{{paleo-turtle-stub}}2. ^E. D. Cope. 1872. Second account of new Vertebrata from the Bridger Eocene. Proceedings of the American Philosophical Society (separate) 1-3 3. ^1 2 {{aut|Ehret, Dana Joseph}} 2004 "Skeletochronology as a method of aging Oligocene Gopherus laticuneus and Stylemys nebrascensis, using Gopherus polyphemus as a modern analog" Thesis, University of Florida. 5 : Fossil taxa of Europe|Hadrianus|Eocene reptiles of North America|Prehistoric turtle genera|Taxa named by Edward Drinker Cope |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。