Janusaurus is an extinct genus of ophthalmosauridichthyosaur 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]
^"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. PMC4118863. 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. PMC6497043. 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. hdl:10852/76089. S2CID 210294877.
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janusaurus, extinct, genus, ophthalmosaurid, ichthyosaur, from, upper, jurassic, slottsmøya, member, agardhfjellet, formation, central, spitsbergen, holotype, consists, partial, skull, postcrania, would, have, belonged, individual, measuring, long, 2019, synon. Janusaurus is an extinct genus of ophthalmosaurid ichthyosaur from the Upper Jurassic Slottsmoya 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 JanusaurusTemporal range Tithonian 150 146 Ma 1 PreꞒ Ꞓ O S D C P T J K Pg N Holotype skull Scientific classification Kingdom Animalia Phylum Chordata Class Sauropsida Subclass Diapsida Order Ichthyosauria Family Ophthalmosauridae Genus JanusaurusRoberts et al 2014 Binomial name Janusaurus lundiRoberts et al 2014Gallery edit nbsp Restored skull source source source source source source Video presentation nbsp Map of fossil localitySee also editList of ichthyosaurs Timeline of ichthyosaur researchReferences edit Janusaurus at Fossilworks Paleobiology Database Fossilworks Retrieved 17 December 2021 Roberts A J Druckenmiller P S Saetre G P Hurum J H 2014 A New Upper Jurassic Ophthalmosaurid Ichthyosaur from the Slottsmoya 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 Slottsmoya Member Lagerstatte Spitsbergen Svalbard Acta Palaeontologica Polonica 64 4 717 743 doi 10 4202 app 00571 2018 hdl 10852 76089 S2CID 210294877 nbsp This Ichthyosaur related article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Janusaurus amp oldid 1216628976, wikipedia, wiki, book, books, library,
