Archegosauridae is a family of relatively large and long snouted

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

s that lived in the

Permian The Permian ( ) is a geologic period and System (stratigraphy), 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 251.902 Mya. It is the s ...

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 (Urban Zakapa album), ''01'' (Urban Zakapa album), 2011 * ''01011 ...

Germany Germany, officially the Federal Republic of Germany, is a country in Central Europe. It lies between the Baltic Sea and the North Sea to the north and the Alps to the south. Its sixteen States of Germany, constituent states have a total popu ...

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

Brazil Brazil, officially the Federative Republic of Brazil, is the largest country in South America. It is the world's List of countries and dependencies by area, fifth-largest country by area and the List of countries and dependencies by population ...

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 or LATE may refer to: Everyday usage * Tardy, or late, not being on time * Late (or the late) may refer to a person who is dead Music * ''Late'' (The 77s album), 2000 * Late (Alvin Batiste album), 1993 * Late!, a pseudonym used by Dave Groh ...

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. Stereospondylomorpha Permian temnospondyls Cisuralian first appearances Lopingian extinctions Temnospondyl families Taxa named by Richard Lydekker {{temnospondyli-stub