# Plagiosaurus

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Extinct genus of amphibians

Plagiosaurus Temporal range: Triassic Scientific classification Kingdom: Animalia Phylum: Chordata Clade: Tetrapoda Order: †Temnospondyli Suborder: †Stereospondyli Family: †Plagiosauridae Genus: †Plagiosaurus Jaekel, 1914 Type species †Plagiosaurus depressus Jaekel, 1914

***Plagiosaurus*** is an extinct genus of temnospondyl [amphibian](/source/Amphibian). The type and only species is *P. depressus*, first described by [Otto Jaekel](/source/Otto_Jaekel) in 1914.[1] [Arthur Smith Woodward](/source/Arthur_Smith_Woodward) regarded the genus as a synonym of *[Plagiosternum](/source/Plagiosternum)*, but most researchers consider it to be valid.[2] It was [paedomorphic](/source/Pedomorphosis), retaining the larval [gills](/source/Gill) in adulthood. Like many [stereospondyls](/source/Stereospondyli), it had weak simplified [vertebrae](/source/Vertebrae), consisting of large [intercentra](https://en.wikipedia.org/w/index.php?title=Intercentrum&action=edit&redlink=1) and [neural arches](/source/Neural_arch), which is known as the stereospondylous condition.

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## References

1. **[^](#cite_ref-1)** Witzmann, F.; Schoch, R. R. (2024). ["Osteology and phylogenetic position of *Plagiosaurus depressus* (Temnospondyli: Plagiosauridae) from the Late Triassic of Germany and the repeated loss of dermal bones in plagiosaurids"](https://academic.oup.com/zoolinnean/advance-article-abstract/doi/10.1093/zoolinnean/zlae014/7615792). *Zoological Journal of the Linnean Society*. [doi](/source/Doi_(identifier)):[10.1093/zoolinnean/zlae014](https://doi.org/10.1093%2Fzoolinnean%2Fzlae014).

1. **[^](#cite_ref-2)** [*Transactions of the American Philosophical Society*](https://books.google.com/books?id=vFwLAAAAIAAJ). Vol. 35. American Philosophical Society. 1946. p. 395. [ISBN](/source/ISBN_(identifier)) [978-1-4223-7723-9](https://en.wikipedia.org/wiki/Special:BookSources/978-1-4223-7723-9). {{[cite book](https://en.wikipedia.org/wiki/Template:Cite_book)}}: ISBN / Date incompatibility ([help](https://en.wikipedia.org/wiki/Help:CS1_errors#invalid_isbn_date))

v t e Stereospondyli Kingdom: Animalia Phylum: Chordata Clade: Tetrapodomorpha Order: Temnospondyli Tetrapodomorpha see Tetrapodomorpha Temnospondyli see Temnospondyli Stereospondyli see below↓ Stereospondyli Stereospondyli Arachana Capulomala Peltobatrachus Lapillopsidae Lapillopsis Manubrantlia Rhigerpeton Rotaurisaurus Rhinesuchidae Australerpeton? Broomistega Laccosaurus Parapytanga? Rastosuchus Rhineceps Rhinesuchoides Rhinesuchus Uranocentrodon Lydekkerinidae Chomatobatrachus Cryobatrachus Deltacephalus Eolydekkerina Indobenthosuchus Luzocephalus? Lydekkerina Capitosauria Antarctosuchus Bukobaja Calmasuchus Capitosaurus Cherninia Cyclotosaurus Edingerella Eocyclotosaurus Eryosuchus Heptasaurus Huangfuchuansuchus Jammerbergia Kestrosaurus Kupferzellia Mastodonsaurus Meyerosuchus Odenwaldia Paracyclotosaurus Parotosuchus Quasicyclotosaurus Procyclotosaurus Promastodonsaurus Rhadalognathus Samarabatrachus Sassenisaurus Sclerothorax Selenocara Stanocephalosaurus Stenotosaurus Subcyclotosaurus Tatrasuchus Vladlenosaurus Volgasaurus Volgasuchus Warrenisuchus Watsonisuchus Wellesaurus Wetlugasaurus Xenotosuchus Yuanansuchus Trematosauria see below↓ Trematosauria Trematosauria Almasaurus Bothriceps Callistomordax Chinlestegophis Keratobrachyops Laidleria Latiscopus Qantas Rileymillerus Syrtosuchus Uruyiella Benthosuchidae Benthosuchus Kwatisuchus Trematosauridae Angusaurus Aphaneramma Cosgriffius Erythrobatrachus Gonioglyptus Hyperokynodon Icanosaurus Indolyrocephalus Inflectosaurus Lyrocephaliscus Microposaurus Panchetosaurus Platystega Prothoosuchus Stoschiosaurus Tertrema Tertremoides Thoosuchus Tirraturhinus Trematolestes Trematosuchoides Trematosaurus Trematosuchus Trematotegmen Wantzosaurus Metoposauridae Anaschisma Apachesaurus Arganasaurus Buettnererpeton Dutuitosaurus Metoposaurus Panthasaurus Rhytidosteidae Boreopelta Mahavisaurus Nanolania Peltostega Pneumatostega Rhytidosteus Sangaia Trucheosaurus Derwentiinae Arcadia Acerastia Deltasaurus Derwentia Indobrachyops Rewana Chigutisauridae Arenaerpeton Chigutisaurus Compsocerops Koolasuchus Pelorocephalus Siderops Brachyopidae Banksiops Bathignathus Batrachosaurus Batrachosuchoides Batrachosuchus Blinasaurus Brachyops Gobiops Hadrokkosaurus Notobrachyops Platycepsion Sinobrachyops Vanastega Vigilius Xenobrachyops Plagiosauridae Gerrothorax Megalophthalma Plagiobatrachus Plagiorophus Plagiosaurus Plagioscutum Plagiosternum Plagiosuchus See also: Trematosauroidea Metoposauroidea Rhytidosteoidea Brachyopomorpha Brachyopoidea Plagiosauroidea Category

Taxon identifiers Plagiosaurus Wikidata: Q594924 IRMNG: 11919488 Paleobiology Database: 37174

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Adapted from the Wikipedia article [Plagiosaurus](https://en.wikipedia.org/wiki/Plagiosaurus) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Plagiosaurus?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.