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Parotosuchus Temporal range: Early Triassic PreꞒ Ꞓ O S D C P T J K Pg N
Skull impression of P. nasutus in the Museum für Naturkunde, Berlin
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Order:	†Temnospondyli
Suborder:	†Stereospondyli
Clade:	†Capitosauria
Family:	†Mastodonsauridae
Genus:	†Parotosuchus Otschev and Shishkin, 1968
Species
†P. nasutus (Meyer, 1858) †P. helgolandicus (Schröder, 1913) †P. haughtoni (Broili & Schröder, 1937) †P. orenburgensis (Konzhukova, 1965) †P. orientalis (Otschev, 1966) †P. panteleevi (Otschev, 1966) †P. ptaszynskii Sulej and Niedźwiedzki, 2013 †P. sequester Lozovsky & Shishkin, 1974 †P. speleus Mikhail A. Shishkin and Tomasz Sulej, 2009 †P. komiensis Novikov, 1986
Synonyms
Archotosaurus Patton, 1976

Parotosuchus is an extinct genus of capitosaurian temnospondyls within the family Mastodonsauridae. Fossils are known from the Early Triassic of Europe, Africa, Australia, and Antarctica. It was about 2 metres (6.6 ft) long and likely lived in aquatic environments such as lakes and rivers. Parotosuchus was covered in a scaly skin, unlike the smooth skin of modern-day amphibians, and probably moved with an eel-like motion in the water.

Parotosuchus was originally named Parotosaurus. However, the name Parotosaurus was preoccupied by a genus of skinks, and in 1968 the name Parotosuchus was proposed as a replacement. The name Archotosaurus was also proposed as a replacement name in 1976, although the author who proposed this was unaware that Parotosuchus was already in use. Because the name Parotosuchus was erected earlier than Archotosaurus, it has priority.

Phylogeny

Parotosuchus in a cladogram after Novikov (2018) with only Early Triassic Eastern Europe taxa included:

References

1. Mikhail A. Shishkin; Tomasz Sulej (2009). "The Early Triassic temnospondyls of the Czatkowice 1 tetrapod assemblage" (PDF). Paleontologica Polonica. 65: 31–77.
2. Yahoo News: Antarctic fossil prompts rethink about amphibian history
3. Linkem, C.W.; Diesmos, A.C.; Brown, R.M. (2010). "A new species of scincid lizard (genus Sphenomorphus) from Palawan Island, Philippines" (PDF). Herpetologica. 66 (1): 67–79. doi:10.1655/08-074.1. S2CID 17889198. Archived from the original (PDF) on 2014-01-15.
4. Kalandadze, N.N.; Ochev, V.G.; Tatarinov, L.P.; Chudinov, P.K.; Shishkin, M.A. (1968). "Catalogue of Permian and Triassic tetrapods of the U.S.S.R.". Upper Paleozoic and Mesozoic Amphibians and Reptiles of the U.S.S.R. Moscow: Nauka. pp. 72–79.
5. Patton, R.L. (1976). "A replacement name for Parotosuchus Jaekel (Amphibia: Labyrinthodontia)" (PDF). Palaeontology. 19 (2): 415–416.
6. Damiani, R. J. (2002). "Parotosuchus (Amphibia, Temnospondyli) from the Cynognathus Assemblage Zone (Early Triassic) of South Africa: Cranial morphology and relationships". Alcheringa: An Australasian Journal of Palaeontology. 25 (4): 351–379. doi:10.1080/03115510108619226. S2CID 128483774.
7. Novikov A.V. (2018). Early Triassic amphibians of Eastern Europe: evolution of dominant groups and peculiarities of changing communities (PDF) (in Russian). Moscow: RAS. p. 138. ISBN 978-5-906906-71-7. "Archive copy" (PDF). December 8, 2023.

Further reading

• Parotosuchus (Temnospondyli: Mastodonsauridae) from the Triassic of Antarctica. Christian A. Sidor, J. Sebastien Steyer and Ross Damiani, Journal of Vertebrate Paleontology, 2007, 27(1):232–235

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 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

• Capitosaurs
• Triassic temnospondyls of Africa
• Triassic temnospondyls of Antarctica
• Triassic temnospondyls of Australia
• Triassic temnospondyls of Europe
• Early Triassic amphibians of Africa
• Fossil taxa described in 1968