| 词条 | Emarginachelys |
| 释义 |
| image = | fossil_range = {{fossilrange|Maastrichtian}} | display_parents = 2 | parent_authority = Whetstone, 1978 | taxon = Emarginachelys cretacea | authority = Whetstone, 1978 }}Emarginachelys cretacea is a turtle belonging to the group Cryptodira, known from well preserved fossils from the Maastrichtian stage of the Late Cretaceous of Montana.[1] Its exact phylogenetic position within Cryptodira is uncertain; different authors considered it to be either the earliest described chelydrid[2][3] or a fossil relative of kinosternoids.[4][5][6] References1. ^Emarginachelys cretacea, Paleobiology Database {{Portal|Turtles}}{{Extinct turtles}}{{Taxonbar|from=Q5369239}}{{paleo-turtle-stub}}2. ^{{Cite journal|author=Kenneth N. Whetstone |year=1978 |title=A new genus of cryptodiran turtles (Testudinoidea, Chelydridae) from the Upper Cretaceous Hell Creek Formation of Montana |journal=University of Kansas Science Bulletin |volume=51 |issue=17 |pages=539–563 }} 3. ^{{Cite journal|author1=Georgia E. Knauss |author2=Walter G. Joyce |author3=Tyler R. Lyson |author4=Dean Pearson |year=2011 |title=A new kinosternoid from the Late Cretaceous Hell Creek Formation of North Dakota and Montana and the origin of the Dermatemys mawii lineage |journal=Paläontologische Zeitschrift |volume=85 |issue=2 |pages=125–142 |doi=10.1007/s12542-010-0081-x }} 4. ^{{Cite journal|author1=Peter A. Meylan |author2=Eugene S. Gaffney |year=1989 |title=The skeletal morphology of the Cretaceous cryptodiran turtle, Adocus, and the relationships of the Trionychoidea |journal=American Museum Novitates |volume=2941 |pages=1–60 |url=http://hdl.handle.net/2246/5096 }} 5. ^{{Cite journal|author=Walter G. Joyce |year=2016 |title=A Review of the Fossil Record of Turtles of the Clade Pan-Chelydridae |journal=Bulletin of the Peabody Museum of Natural History |volume=57 |issue=1 |pages=21–56 |doi=10.3374/014.057.0103 }} 6. ^{{Cite journal|author1=Walter G. Joyce |author2=Jason R. Bourque |year=2016 |title=A Review of the Fossil Record of Turtles of the Clade Pan-Kinosternoidea |journal=Bulletin of the Peabody Museum of Natural History |volume=57 |issue=1 |pages=57–95 |doi=10.3374/014.057.0104 }} 4 : Cryptodira|Late Cretaceous turtles of North America|Prehistoric turtle genera|Fossil taxa described in 1978 |
| 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。