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Chroniosuchidae Temporal range: Upper Permian–Upper Triassic PreꞒ Ꞓ O S D C P T J K Pg N
Chroniosuchus
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Order:	†Chroniosuchia
Family:	†Chroniosuchidae Vjuschkov, 1957
Genera
Chroniosaurus Chroniosuchus Ingentidens Jarilinus Madygenerpeton Phratochronis Uralerpeton Suchonica

Chroniosuchidae is a family of semi-aquatic tetrapods found in sediments from the upper Permian and the upper Triassic periods, most in Russia. They were generally rather large animals, with long jaws similar to those found in modern crocodiles, and probably lived a similar lifestyle as riverside piscivores and ambush predators. Like all chroniosuchians, they bore extensive osteoderm armour on their backs, possibly as protection against terrestrial predators such as the Permian therapsids and the Triassic rauisuchians.

Phylogeny

Below is the cladogram from Buchwitz et al. (2012) showing the phylogenetic relations of chroniosuchids:

See also

• Permian tetrapods

References

1. ^ Jin-Ling Li; Zheng-Wu Cheng (1999). "New Anthracosaur and Temnospondyl Amphibians from Gansu, China - The Fifth Report on Late Permian Dashankou Lower Tetrapod Fauna" (PDF). Vertebrata PalAsiatica. 37 (3): 234–247.
2. V. K. Golubev (1998). "Revision of the Late Permian Chroniosuchians (Amphibia, Anthracosauromorpha) from Eastern Europe" (PDF). Paleontological Journal. 32 (4): 390–401.
3. Rainer R. Schoch; Sebastian Voigt; Michael Buchwitz (2010). "A chroniosuchid from the Triassic of Kyrgyzstan and analysis of chroniosuchian relationships". Zoological Journal of the Linnean Society. 160 (3): 515–530. doi:10.1111/j.1096-3642.2009.00613.x.
4. V. K. Golubev (1998). "Narrow-armored Chroniosuchians (Amphibia, Anthracosauromorpha) from the Late Permian of Eastern Europe" (PDF). Paleontological Journal. 32 (3): 278–287.
5. V. K. Golubev (1999). "A New Narrow-Armored Chroniosuchian (Amphibia, Anthracosauromorpha) from the Upper Permian of Eastern Europe" (PDF). Paleontological Journal. 33 (2): 166–173.
6. Buchwitz, M.; Foth, C.; Kogan, I.; Voigt, S. (2012). "On the use of osteoderm features in a phylogenetic approach on the internal relationships of the Chroniosuchia (Tetrapoda: Reptiliomorpha)". Palaeontology. 55 (3): 623–640. Bibcode:2012Palgy..55..623B. doi:10.1111/j.1475-4983.2012.01137.x.

v t e Reptiliomorpha (Pan‑Amniota)
Kingdom: Animalia Phylum: Chordata Clade: Osteichthyes Clade: Sarcopterygii Clade: Tetrapoda Tetrapodomorpha see Tetrapodomorpha Reptiliomorpha see below↓ Reptiliomorpha / Pan-Amniota
Reptiliomorpha †Caerorhachis? †Casineria? †Eldeceeon? †Romeriscus †Silvanerpeton? †Solenodonsaurus? †Termonerpeton? †Westlothiana? †Embolomeri? †Gephyrostegidae? †Chroniosuchia? Laosuchus Bystrowianidae Axitectum Bystrowiana Bystrowiella Dromotectum Hassiacoscutum Jiyuanitectum Synesuchus Yumenerpeton Chroniosuchidae Chroniosaurus Chroniosuchus Ingentidens Jarilinus Madygenerpeton Phratochronis Suchonica Uralerpeton †Seymouriamorpha? Ariekanerpeton Biarmica Discosauriscus Enosuchus? Karpinskiosaurus Kotlassia Leptoropha Makowskia Microphon Nyctiboetus Seymouria Spinarerpeton Utegenia Volgerpeton Waggoneria "Microsauria"? see Microsauria possibly includes Lissamphibia Amniota †Diadectomorpha? Limnoscelis? Tseajaia Diadectidae Alveusdectes Ambedus Desmatodon Diadectes Diasparactus Kuwavaatakdectes Orobates Phanerosaurus Stephanospondylus †"Protorothyrididae" Anthracodromeus Brouffia Cephalerpeton Coelostegus Hylonomus Paleothyris Protorothyris Thuringothyris †Araeoscelidia Aphelosaurus Araeoscelis Dictybolos? Halgaitosaurus Kadaliosaurus Petrolacosaurus Spinoaequalis? Zarcasaurus †Captorhinidae Acrodenta Baeotherates Captorhinoides Captorhinus Euconcordia? Labidosauriscus Labidosaurus Opisthodontosaurus? Protocaptorhinus Puercosaurus? Reiszorhinus Rhiodenticulatus Rhodotheratus Riabininus? Romeria Saurorictus Moradisaurinae Balearosaurus Captorhinikos Gansurhinus Gecatogomphius Indosauriscus Kahneria Labidosaurikos Moradisaurus Rothianiscus Sumidadectes Tramuntanasaurus Amniota (crown group) Synapsida (Pan‑Mammalia) see Synapsida includes mammals Sauropsida (Pan‑Reptilia) see Sauropsida includes reptiles and birds
See also: Labyrinthodontia Lepospondyli Anthracosauria Batrachosauria Cotylosauria Eureptilia

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• Chroniosuchians
• Permian tetrapods
• Triassic tetrapods
• Prehistoric tetrapod families
• Prehistoric tetrapod stubs
• Triassic animal stubs