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Juramaia âśť

Description

Juramaia is an extinct genus of very basal eutherian mammal from the Late Jurassic (Oxfordian stage) deposits of western Liaoning, China; it is a small shrew-like mammal with a body length approximately 70–100 mm, similar in size to the modern De Winton's shrew. Juramaia is known from the holotype BMNH PM1343, an articulated and nearly complete skeleton including incomplete skull preserved with full dentition.


Source Data
SourceIDLink
Global Biodiversity Information Facility ID (GBIF)8554041https://www.gbif.org/species/8554041
PaleoBioDB ID (PBDB)196927https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=196927
Rankgenus
Taxonomy (GBIF,PBDB)Life : Animalia : Chordata : Mammalia : Juramaia
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
genusJuramaiaLuo Yuan Meng & Ji 2011
Scientific NameJuramaia Luo, Yuan, Meng & Ji, 2011
Name Published InArticle title: A Jurassic eutherian mammal and divergence of marsupials and placentals.
Opinions (PBDB)
NameRankOpinionEvidenceAuthor
Juramaiagenusbelongs to Eutheriastated with evidenceLuo et al., 2011
Status (PBDB)extinct
Taxon Size (PBDB)2
First Recorded Appearance168 - 157 Ma
Jurassic
Last Recorded Appearance164 - 151 Ma
Jurassic
Environmentterrestrial (based on Eutheria)
Motilityactively mobile (based on Osteichthyes)
Dietinsectivore
Taphonomyphosphatic (based on Vertebrata)
Primary Reference (PBDB)Z.-X. Luo, C.-X. Yuan, and Q.-J. Meng, Q. Ji. 2011. A Jurassic eutherian mammal and divergence of marsupials and placentals. Nature 476:442-445
Wikipediahttps://en.wikipedia.org/wiki/Juramaia

Fossil Distribution

Subtaxa

NameStatusCommon Name(s)Fossil OccurrencesOldestYoungest
Juramaia sinensis âśť
species
accepted (GBIF)
listed (PBDB)
1164 Ma
Middle Jurassic
164 Ma
Middle Jurassic

Synonymy List

YearName and Author
2011Juramaia Luo et al. p. 442
2018Juramaia Bi et al.

References

Luo Z.-X., Yuan C.-X., et al (2011) A Jurassic eutherian mammal and divergence of marsupials and placentals, Nature 476, 442-445 doi:10.1038/nature10291
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
inferred from original work (title) - via The Interim Register of Marine and Nonmarine Genera
refer original publication - via The Interim Register of Marine and Nonmarine Genera
www.organismnames.com (Jul 2012) / web search - via The Interim Register of Marine and Nonmarine Genera
Article title: A Jurassic eutherian mammal and divergence of marsupials and placentals. - via The Interim Register of Marine and Nonmarine Genera
Nature 476. - 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!
 
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