Janusaurus
Janusaurus Temporal range: Tithonian
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Holotype skull | |
Scientific classification | |
Kingdom: | Animalia
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Phylum: | Chordata
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Class: | |
Subclass: | Diapsida
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Order: | †Ichthyosauria
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Family: | |
Genus: | †Janusaurus Roberts et al., 2014
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Binomial name | |
†Janusaurus lundi Roberts et al., 2014
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Janusaurus is an extinct genus of ophthalmosaurid ichthyosaur from the Upper Jurassic Slottsmøya Member, Agardhfjellet Formation of Central Spitsbergen. The holotype consists of a partial skull.[2] In 2019, Janusaurus was synonymized with Arthropterygius, though maintained as a separate species, by Nikolay Zverkov and Natalya Prilepskaya,[3] although this synonymy was objected to later that same year by Lene Delsett and colleagues, who maintained that they were sufficiently different to warrant separate genera.[4]
Gallery[]
Restored skull
Video presentation
Map of fossil locality
See also[]
- List of ichthyosaurs
- Timeline of ichthyosaur research
References[]
- ^ "Janusaurus at Fossilworks". Paleobiology Database. Fossilworks. Retrieved 17 December 2021.
- ^ Roberts, A. J.; Druckenmiller, P. S.; Sætre, G. P.; Hurum, J. H. (2014). "A New Upper Jurassic Ophthalmosaurid Ichthyosaur from the Slottsmøya Member, Agardhfjellet Formation of Central Spitsbergen". PLOS ONE. 9 (8): e103152. Bibcode:2014PLoSO...9j3152R. doi:10.1371/journal.pone.0103152. PMC 4118863. PMID 25084533.
- ^ Zverkov, N. G.; Prilepskaya, N. E. (2019). "A prevalence of Arthropterygius (Ichthyosauria: Ophthalmosauridae) in the Late Jurassic—earliest Cretaceous of the Boreal Realm". PeerJ. 7: e6799. doi:10.7717/peerj.6799. PMC 6497043. PMID 31106052.
- ^ Delsett, L. L.; Roberts, A. J.; Druckenmiller, P. S.; Hurum, J. H. (2019). "Osteology and phylogeny of Late Jurassic ichthyosaurs from the Slottsmøya Member Lagerstätte (Spitsbergen, Svalbard)". Acta Palaeontologica Polonica. 64 (4): 717–743. doi:10.4202/app.00571.2018. S2CID 210294877.
Categories:
- Ophthalmosaurinae
- Ichthyosaurs of Europe
- Late Jurassic ichthyosaurs
- Late Jurassic reptiles of Europe
- Tithonian life
- Fossils of Svalbard
- Agardhfjellet Formation
- Fossil taxa described in 2014
- Ichthyosauromorph genera
- Ichthyosaur stubs