Archegosauridae is a family of relatively large and long snouted

temnospondyl Temnospondyli (from Greek language, Greek τέμνειν, ''temnein'' 'to cut' and σπόνδυλος, ''spondylos'' 'vertebra') is a diverse order (biology), order of small to giant tetrapods—often considered Labyrinthodontia, primitive amphi ...

s that lived in the

Permian The Permian ( ) is a geologic period and stratigraphic system which spans 47 million years from the end of the Carboniferous Period million years ago (Mya), to the beginning of the Triassic Period 251.9 Mya. It is the last period of the Paleoz ...

period. They were fully aquatic animals, and were metabolically and physiologically more similar to fish than modern amphibians.Florian Witzmann; Elizabeth Brainerd (2017). "Modeling the physiology of the aquatic temnospondyl Archegosaurus decheni from the early Permian of Germany". Fossil Record. 20 (2): 105–127. doi:10.5194/fr-20-105-2017. The family has been divided into two subfamilies, the longer-snouted Platyoposaurinae and the shorter-snouted Melosaurinae.

Gallery

Platyoposaurinae

File:ArchegosaurusDB3.jpg, '' Archegosaurus decheni'', of the

early Permian 01 or '01 may refer to: * The year 2001, or any year ending with 01 * The month of January * 1 (number) Music * '01 (Richard Müller album), 01'' (Richard Müller album), 2001 * 01 (Son of Dave album), ''01'' (Son of Dave album), 2000 * 01 (Urban ...

Germany Germany,, officially the Federal Republic of Germany, is a country in Central Europe. It is the second most populous country in Europe after Russia, and the most populous member state of the European Union. Germany is situated betwe ...

File:Prionosuchus BW.jpg, '' Prionosuchus plummeri'', of the early Permian of

Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area ...

File:Platyoposaurus watsoni 1DB.jpg, '' Platyoposaurus watsoni'', of the early to

middle Permian The Guadalupian is the second and middle series/epoch of the Permian. The Guadalupian was preceded by the Cisuralian and followed by the Lopingian. It is named after the Guadalupe Mountains of New Mexico and Texas, and dates between 272.95 ± 0. ...

of Russia File:Platyoposaurus12DB.jpg, ''Platyoposaurus stuckenbergi'', of the middle Permian of Russia File:Collidosuchus12DB.jpg, '' Collidosuchus tchudinovi'', of the middle Permian of Russia

Melosaurinae

File:Melosaurus platyrh12DB.jpg, '' Melosaurus platyrhinus'', of the early to middle Permian of Russia File:Konzhukovia_vetusta_1DB.jpg, '' Konzhukovia vetusta'', of the middle to

late Permian Late may refer to: * LATE, an acronym which could stand for: ** Limbic-predominant age-related TDP-43 encephalopathy, a proposed form of dementia ** Local-authority trading enterprise, a New Zealand business law ** Local average treatment effect, ...

of Russia File:Tryphosuchus1DB.jpg, '' Tryphosuchus'', of the middle to late Permian of Russia

References

*Ruta, M., Pisani, D., Lloyd, G. T. and Benton, M. J. 2007. A supertree of Temnospondyli: cladogenetic patterns in the most species-rich group of early tetrapods. ''Proceedings of the Royal Society B-Biological Sciences'' 274: 3087–3095. Stereospondylomorphs Permian temnospondyls Cisuralian first appearances Lopingian extinctions Prehistoric amphibian families Taxa named by Richard Lydekker {{temnospondyli-stub