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Eonatator

Description

Eonatator is an extinct genus of marine lizard belonging to the mosasaur family. It is a close relative of Halisaurus, and part of the same subfamily, the Halisaurinae. It is known from the Late Cretaceous of North America, Colombia and Sweden. Originally, this taxon was included within Halisaurus, but was placed in its own genus, which also lead to the subfamily Halisaurinae being created for the two genera.


Source Data
SourceIDLink
Global Biodiversity Information Facility ID (GBIF)8521846https://www.gbif.org/species/8521846
PaleoBioDB ID (PBDB)202569https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=202569
Rankgenus
Taxonomy (GBIF,PBDB)Life : Animalia : Chordata : Reptilia : Squamata : Mosasauridae : Eonatator
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
-Lepidosauromorpha
superorderLepidosauria
orderSquamataOppel 1811
-EpisquamataPyron et al. 2013
-ToxicoferaVidal and Hedges 2005
superfamilyMosasauria
familyMosasauridaeGervais 1852
-HalisaurinaeBardet et al. 2005
genusEonatatorBardet et al. 2005
Scientific NameEonatator Bardet et al., 2005
Opinions (PBDB)
NameRankOpinionEvidenceAuthor
Eonatatorgenusbelongs to Halisaurinaestated with evidenceBardet et al., 2005
Eonatatorgenusbelongs to Halisaurinaestated without evidencePáramo-Fonseca, 2013
Status (PBDB)extinct
Taxon Size (PBDB)2
First Recorded Appearance83.6 - 72.1 Ma
Late/Upper Cretaceous
Last Recorded Appearance83.5 - 70.6 Ma
Late/Upper Cretaceous
Environmentterrestrial (based on Diapsida)
Motilityactively mobile (based on Osteichthyes)
Visionwell-developed (based on Mosasauridae)
Dietcarnivore (based on Mosasauridae)
Reproductionovoviviparous (based on Mosasauridae)
Taphonomyphosphatic (based on Vertebrata)
Primary Reference (PBDB)N. Bardet, X. Pereda Suberbiola, and M. Iarochene, B. Bouya, M. Amaghaz. 2005. A new species of Halisaurus from the Late Cretaceous phosphates of Morocco, and the phylogenetical relationships of the Halisaurinae (Squamata: Mosasauridae). Zoological Journal of the Linnean Society 143:447-472
Wikipediahttps://en.wikipedia.org/wiki/Eonatator

Fossil Distribution

Subtaxa

NameStatusCommon Name(s)Fossil OccurrencesOldestYoungest
Eonatator coellensis
species
accepted (GBIF)
listed (PBDB)
183.6 Ma
Late/Upper Cretaceous
83.6 Ma
Late/Upper Cretaceous

Synonymy List

YearName and Author
2005Eonatator Bardet et al.
2013Eonatator Páramo-Fonseca

References

Bardet N., Pereda Suberbiola X., et al (2005) A new species of Halisaurus from the Late Cretaceous phosphates of Morocco, and the phylogenetical relationships of the Halisaurinae (Squamata: Mosasauridae), Zoological Journal of the Linnean Society 143, 447-472
Páramo-Fonseca M. E. (2013) Eonatator coellensis nov. sp. (Squamata: Mosasauridae), a new species from the Upper Cretaceous of Colombia, Revista de la Academia Colombiana de Ciencias 37 145, 499-518
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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