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Alexeyisaurus karnoushenkoi

Description

Alexeyisaurus is an extinct genus of elasmosaurid plesiosaur known from the upper Triassic (lower-middle Norian age) of Wilczek Formation, Wilczek Land, of Franz Josef Land, Russia. It was first named by A. G. Sennikov and M. S. Arkhangelsky in 2010 and the type species is Alexeyisaurus karnoushenkoi.


Source Data
SourceIDLink
Global Biodiversity Information Facility ID (GBIF)8649498https://www.gbif.org/species/8649498
PaleoBioDB ID (PBDB)176047https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=176047
Rankspecies
Taxonomy (GBIF)Life : Animalia : Chordata : Reptilia : Elasmosauridae : Alexeyisaurus : Alexeyisaurus karnoushenkoi
Taxonomy (PBDB)Life : Animalia : Chordata : Reptilia : Sauropterygia : Elasmosauridae : Alexeyisaurus : Alexeyisaurus karnoushenkoi
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
orderSauropterygiaOwen 1861
-Pistosauria
-Plesiosauria
superfamilyPlesiosauroideaWelles 1943
-CryptoclidiaKetchum and Benson 2010
-XenopsariaBenson and Druckenmiller 2014
familyElasmosauridaeCope 1869
genusAlexeyisaurusSennikov and Arkhangelsky 2010
speciesAlexeyisaurus karnoushenkoiSennikov & Arkhangelsky 2010
Generic NameAlexeyisaurus
Scientific NameAlexeyisaurus karnoushenkoi Sennikov & Arkhangelsky, 2010
Opinions (PBDB)
NameRankOpinionEvidenceAuthor
Alexeyisaurus karnoushenkoispeciesbelongs to Alexeyisaurusstated with evidenceSennikov and Arkhangelsky, 2010
Status (PBDB)extinct
Taxon Size (PBDB)1
First Recorded Appearance228 - 209 Ma
Late/Upper Triassic
Last Recorded Appearance228 - 209 Ma
Late/Upper Triassic
Environmentmarine (based on Plesiosauria)
Motilityactively mobile (based on Plesiosauria)
Dietcarnivore (based on Plesiosauria)
Reproductionviviparous (based on Plesiosauria)
Taphonomyhydroxylapatite (based on Plesiosauria)
Primary Reference (PBDB)A. G. Sennikov and M. S. Arkhangelsky. 2010. On a typical Jurassic sauropterygian from the Upper Triassic of Wilczek Land (Franz Josef Land, Arctic Russia). Paleontological Journal 44(5):567-572
Wikipediahttps://en.wikipedia.org/wiki/Alexeyisaurus_karnoushenkoi

Fossil Distribution

Synonymy List

YearName and Author
2010Alexeyisaurus karnoushenkoi Sennikov and Arkhangelsky pp. 568-571 figs. 2-6

References

Sennikov A. G., Arkhangelsky M. S. (2010) On a typical Jurassic sauropterygian from the Upper Triassic of Wilczek Land (Franz Josef Land, Arctic Russia), Paleontological Journal 44 5, 567-572
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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