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Shokawa ✝

Description

Shokawa ikoi was a 1.8 m long choristoderan diapsid reptile closely resembling and closely related to the smaller choristoderan, Hyphalosaurus. It lived during the Lower Cretaceous in what is now Japan.


From Wikipedia article at https://en.wikipedia.org/wiki/Shokawa, which is released under the Creative Commons Attribution-Share-Alike License 3.0.
Source Data
SourceIDLink
Global Biodiversity Information Facility ID (GBIF)4821742https://www.gbif.org/species/4821742
PaleoBioDB ID (PBDB)201216https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=201216
Rankgenus
Taxonomy (GBIF)Life : Animalia : Chordata : Reptilia : Shokawa
Taxonomy (PBDB)Life : Animalia : Chordata : Reptilia : Choristodera : Shokawa
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
genusShokawaEvans & Manabe 1999
Scientific NameShokawa Evans & Manabe, 1999
Name Published InSpec Pap Palaeontol 60, January
Opinions (PBDB)
NameRankOpinionEvidenceAuthor
Shokawagenusbelongs to Choristoderastated with evidenceEvans and Manabe, 1999
Shokawagenusbelongs to Hyphalosauridaestated with evidenceGao and Fox, 2005
Shokawagenusbelongs to Hyphalosauridaestated without evidenceMatsumoto and Evans, 2010
Shokawagenusbelongs to Choristoderastated with evidenceMatsumoto et al., 2013
Status (PBDB)extinct
Taxon Size (PBDB)2
First Recorded Appearance140 - 133 Ma
Early/Lower Cretaceous
Last Recorded Appearance140 - 130 Ma
Early/Lower Cretaceous
Environmentterrestrial (based on Diapsida)
Motilityactively mobile (based on Osteichthyes)
Taphonomyphosphatic (based on Vertebrata)
Primary Reference (PBDB)S. E. Evans and M. Manabe. 1999. A choristoderan reptile from the Lower Cretaceous of Japan. Special Papers in Palaeontology 60:101-119
Wikipediahttps://en.wikipedia.org/wiki/Shokawa

Fossil Distribution

Subtaxa

NameStatusCommon Name(s)Fossil OccurrencesOldestYoungest
Shokawa ikoi ✝
species		accepted (GBIF)
listed (PBDB)		1140 Ma
Early/Lower Cretaceous		140 Ma
Early/Lower Cretaceous

Synonymy List

YearName and Author
1999Shokawa Evans and Manabe pp. 103-109 figs. 1-7
2005Shokawa Gao and Fox p. 438
2008Shokawa Gao and Ksepka p. 749
2010Shokawa Matsumoto and Evans
2013Shokawa Matsumoto et al.
2019Shokawa Matsumoto et al.

References

Evans S. E., Manabe M. (1999) A choristoderan reptile from the Lower Cretaceous of Japan, Special Papers in Palaeontology 60, 101-119
Gao K. -Q., Fox R. C. (2005) A new choristodere (Reptilia: Diapsida) from the Lower Cretaceous of western Liaoning Province, CHina, and phylognetic relationships of Monjurosuchidae, Zoological Journal of the Linnean Society of London 145, 427-444
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
Matsumoto R., Evans S. E. (2010) Choristoderes and the freshwater assemblages of Laurasia, Journal of Iberian Geology 36 2, 253-274
Matsumoto R., Buffetaut E., et al (2013) New material of the choristodere Lazarussuchus (Diapsida, Choristodera) from the Paleocene of France, Journal of Vertebrate Paleontology 33 2, 319-339
Matsumoto R., Dong L., et al (2019) The first record of a nearly complete choristodere (Reptilia: Diapsida) from the\r\nUpper Jurassic of Hebei Province, People’s Republic of China, Journal of Systematic Palaeontology doi:10.1080/14772019.2018.1494220
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
Spec Pap Palaeontol 60, January - 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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