登录注册
Quick Links : Mindat手册The Rock H. Currier Digital LibraryMindat Newsletter [Free Download]
主页关于 MindatMindat手册Mindat的历史版权Who We Are联系我们于 Mindat.org刊登广告
捐赠给 MindatCorporate Sponsorship赞助板页已赞助的板页在 Mindat刊登 广告的广告商于 Mindat.org刊登广告
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsThe Rock H. Currier Digital LibraryGeologic Time
搜索矿物的性质搜索矿物的化学Advanced Locality Search随意显示任何一 种矿物Random Locality使用minID搜索邻近产地Search Articles搜索词汇表更多搜索选项
搜索:
矿物名称:
地区产地名称:
关键字:
 
Mindat手册添加新照片Rate Photos产区编辑报告Coordinate Completion Report添加词汇表项目
Mining Companies统计会员列表Mineral MuseumsClubs & Organizations矿物展及活动The Mindat目录表设备设置The Mineral Quiz
照片搜索Photo GalleriesSearch by Color今天最新的照片昨天最新的照片用户照片相集过去每日精选照片相集Photography
BETA TEST - Fossil data and pages are very much experimental and under development. Please report any problems

Eomaia

Description

Eomaia ("dawn mother") is a genus of extinct fossil mammals containing the single species Eomaia scansoria, discovered in rocks that were found in the Yixian Formation, Liaoning Province, China, and dated to the Barremian Age of the Lower Cretaceous about 125 million years ago. The single fossil specimen of this species is 10 centimetres (3.9 in) in length and virtually complete. An estimate of the body weight is between 20–25 grams (0.71–0.88 oz). It is exceptionally well-preserved for a 125-million-year-old specimen. Although the fossil's skull is squashed flat, its teeth, tiny foot bones, cartilages and even its fur are visible.


Source Data
SourceIDLink
Global Biodiversity Information Facility ID (GBIF)4829743https://www.gbif.org/species/4829743
PaleoBioDB ID (PBDB)67562https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=67562
Rankgenus
Taxonomy (GBIF,PBDB)Life : Animalia : Chordata : Mammalia : Eomaia
Taxonomic Status (GBIF)accepted
Classification
(PBDB,GBIF)
RankNameAuthor
-Eukaryota
-OpisthokontaCavalier-Smith 1987
kingdomAnimalia
-TriploblasticaLankester 1877
-NephrozoaJondelius et al. 2002
-DeuterostomiaGrobben 1908
phylumChordataHaeckel 1847
subphylumVertebrataLamarck 1801
superclassGnathostomataGegenbauer 1874
-Osteichthyes
-SarcopterygiiRomer 1955
subclassDipnotetrapodomorpha
subclassTetrapodomorpha
-Tetrapoda
-ReptiliomorphaSäve-Söderbergh 1934
-AnthracosauriaSäve-Söderbergh 1934
-Batrachosauria
-Cotylosauria
-AmniotaHaeckel 1866
-SynapsidaOsborn 1903
-Therapsida
infraorderCynodontia
-EpicynodontiaHopson and Kitching 2001
infraorderEucynodontiaKemp 1982
-ProbainognathiaHopson 1990
-MammaliamorphaRowe 1988
-MammaliaformesRowe 1988
classMammaliaLinnaeus 1758
subclassTribosphenida
infraclassEutheria
genusEomaiaJi Luo Yuan Wible Zhang & Georgi 2002
Scientific NameEomaia Ji, Luo, Yuan, Wible, Zhang & Georgi, 2002
Name Published InNature (Lond) 416 (6883), 25 April
Opinions (PBDB)
NameRankOpinionEvidenceAuthor
Eomaiagenusbelongs to Eutheriastated without evidenceJi et al., 2002
Eomaiagenusbelongs to Eutheriastated with evidenceWang et al., 2006
Eomaiagenusbelongs to Eutheriastated without evidenceZhou and Wang, 2010
Eomaiagenusbelongs to Eutheriastated with evidenceBi et al., 2018
Status (PBDB)extinct
Taxon Size (PBDB)2
First Recorded Appearance129 - 125 Ma
Early/Lower Cretaceous
Last Recorded Appearance129 - 125 Ma
Early/Lower Cretaceous
Environmentterrestrial (based on Eutheria)
Motilityactively mobile (based on Osteichthyes)
Dietinsectivore
Ecospace Commentsscansorial based on phalangeal morphology (Luo et al. 2003); clearly insectivorous based on very small body size (about 25 to 40 g) and dentition
Taphonomyphosphatic (based on Vertebrata)
Primary Reference (PBDB)Q. Ji, Z.-X. Luo, and C.-X. Yuan, JR Wible, J.-P. Zhang, JA Georgi. 2002. The earliest known eutherian mammal. Nature 416:816-822
Wikipediahttps://en.wikipedia.org/wiki/Eomaia

Fossil Distribution

Subtaxa

NameStatusCommon Name(s)Fossil OccurrencesOldestYoungest
Eomaia scansoria
species
accepted (GBIF)
listed (PBDB)
1129 Ma
Early/Lower Cretaceous
129 Ma
Early/Lower Cretaceous

Synonymy List

YearName and Author
2002Eomaia Ji et al. p. 816
2004Eomaia Kielan-Jaworowska et al. pp. 494-497 figs. 13.8A, 13.9, 13.10, 13.17A, 13.19G
2006Eomaia Wang et al.
2010Eomaia Zhou and Wang
2018Eomaia Bi et al.

References

Ji Q., Luo Z.-X., et al (2002) The earliest known eutherian mammal, Nature 416, 816-822
Kielan-Jaworowska Z., Cifelli R. L., et al (2004) Mammals from the age of dinosaurs: Origins, evolution, and structure, Columbia University Press, New York, 1-630
Zhou Z. -H., Wang Y. (2010) Vertebrate diversity of the Jehol Biota as compared with other Lagerstätten, Science China, Earth Sciences 53 12, 1895-1907 doi:10.1007/s11430-010-4094-9
Bi S., Zheng X., et al (2018) An Early Cretaceous eutherian and the placental–marsupial dichotomy, Nature 558, 390-395 doi:10.1038/s41586-018-0210-3
Nature (Lond) 416 (6883), 25 April - via The Interim Register of Marine and Nonmarine Genera
Nomenclator Zoologicus. A list of the names of genera and subgenera in zoology from the tenth edition of Linnaeus, 1758 to the end of 2004. Digitised by uBio from vols. 1-9 of Neave (ed.), 1939-1996 plus supplementary digital-only volume. http://ubio.org/NomenclatorZoologicus (as at 2006). - via The Interim Register of Marine and Nonmarine Genera
Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!
 
矿物 and/or 产地  
Mindat Discussions Facebook Logo Instagram Logo Discord Logo
版权所有© mindat.org1993年至2024年,除了规定的地方。 Mindat.org全赖于全球数千个以上成员和支持者们的参与。
隐私政策 - 条款和条款细则 - 联络我们 - Report a bug/vulnerability Current server date and time: 2024.4.18 12:26:32
Go to top of page