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Hyphalosaurus baitaigouensis

Description

Hyphalosaurus (meaning "submerged lizard") is a genus of freshwater aquatic reptiles which represent a major part of the Jehol Biota. They lived during the early Cretaceous period (Aptian age), about 122 million years ago. The genus contains two species, H. lingyuanensis and H. baitaigouensis, both from the Yixian Formation of Liaoning Province, China. They are among the best-known animals from the Jehol Biota, with thousands of fossil specimens representing all growth stages in scientific and private collections.


Source Data
SourceIDLink
Global Biodiversity Information Facility ID (GBIF)8537104https://www.gbif.org/species/8537104
PaleoBioDB ID (PBDB)197706https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=197706
Rankspecies
Taxonomy (GBIF)Life : Animalia : Chordata : Reptilia : Hyphalosauridae : Hyphalosaurus : Hyphalosaurus baitaigouensis
Taxonomy (PBDB)Life : Animalia : Chordata : Reptilia : Choristodera : Hyphalosaurus : Hyphalosaurus baitaigouensis
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
-SauropsidaHuxley 1864
classReptiliaLaurenti 1768
subclassEureptilia
-RomeriidaGauthier et al. 1988
-Diapsida
-Eosuchia
-NeodiapsidaBenton 1985
-SauriaGauthier 1984
-Choristodera
genusHyphalosaurusGao et al. 1999
speciesHyphalosaurus baitaigouensisJi et al. 2004
Generic NameHyphalosaurus
Scientific NameHyphalosaurus baitaigouensis Ji et al., 2004
Opinions (PBDB)
NameRankOpinionEvidenceAuthor
Hyphalosaurus baitaigouensisspeciesbelongs to Hyphalosaurusstated with evidenceJi et al., 2004
Hyphalosaurus baitaigouensisspeciesbelongs to Hyphalosaurusstated without evidenceHou et al., 2010
Status (PBDB)extinct
Taxon Size (PBDB)1
First Recorded Appearance125 - 122 Ma
Early/Lower Cretaceous
Last Recorded Appearance125 - 122 Ma
Early/Lower Cretaceous
Environmentterrestrial (based on Diapsida)
Motilityactively mobile (based on Osteichthyes)
Taphonomyphosphatic (based on Vertebrata)
Primary Reference (PBDB)Z. -H. Zhou and Y. Wang. 2010. Vertebrate diversity of the Jehol Biota as compared with other Lagerstätten. Science China, Earth Sciences 53(12):1895-1907
Wikipediahttps://en.wikipedia.org/wiki/Hyphalosaurus_baitaigouensis

Fossil Distribution

Synonymy List

YearName and Author
2004Hyphalosaurus baitaigouensis Ji et al.
2008Hyphalosaurus baitaigouensis Gao and Ksepka p. 758
2010Hyphalosaurus baitaigouensis Hou et al.
2010Hyphalosaurus baitaigouensis Zhou and Wang

References

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
Gao K. -Q., Ksepka D. T. (2008) Osteology and taxonomic revision of Hyphalosaurus (Diapsida: Choristodera) from the Lower Cretaceous of Liaoning, China, Journal of Anatomy 212, 747-768 doi:10.1111/j.1469-7580.2008.00907.x
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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