Biology:Janusaurus
From HandWiki
Short description: Extinct genus of reptiles
| Janusaurus | |
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| Holotype skull | |
| Scientific classification | |
| Kingdom: | Animalia
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| Phylum: | |
| Class: | |
| Subclass: | Diapsida
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| Order: | |
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| 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 and postcrania, and would have belonged to an individual measuring 3–4 m (9.8–13.1 ft) long.[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. http://www.fossilworks.org/cgi-bin/bridge.pl?a=taxonInfo&taxon_no=301634.
- ↑ 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. doi:10.1371/journal.pone.0103152. PMID 25084533. Bibcode: 2014PLoSO...9j3152R.
- ↑ 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. 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.
Wikidata ☰ Q17506260 entry
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