Kyasuchus

Extinct genus of reptiles

Kyasuchus Temporal range: Early Cretaceous
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Clade:	Archosauria
Clade:	Pseudosuchia
Clade:	Crocodylomorpha
Clade:	Crocodyliformes
Family:	†Shartegosuchidae
Genus:	†Kyasuchus Efimov and Leshchinskiy, 2000
Species
K. saevi Efimov and Leshchinskiy, 2000 (type)

Kyasuchus is an extinct genus of shartegosuchid crocodyliform. Fossils have been found from the Ilek Formation outcropping in the Kemerovo Oblast of Russia, deposited during the Aptian and Albian stages of the Early Cretaceous.^[1]^[2] The localities from which specimens of this genus have been found have also yielded many other vertebrate remains such as those of palaeonisciform fishes, turtles, various lizards, troodontids, triconodonts, the ceratopsian Psittacosaurus, and the protosuchian-grade crocodylomorph Tagarosuchus.^[3]

References

^ Efimov, M. B. and Leshchinskiy, S. V. (2000). First finding of the fossil crocodile skull in Siberia [in Russian]. In: Komarov, A. V., ed., Materialy regional’noj konferencii geologov Sibiri, Dal’nego Vostoka i Severo−Vostoka Rossii. Tom II, 361–363. GalaPress, Tomsk.
^ Fiorelli, L. E. and Calvo, J. O. (2007). The first “protosuchian” (Archosauria: Crocodyliformes) from the Cretaceous (Santonian) of Gondwana. Arquivos do Museu Nacional, Rio de Janeiro 65(4):417-459.
^ Averianov, A. O., Voronkevich, A. V., Maschenko, E. N., Leshchinskiy, S. V. and Fayngertz, A. V. (2002). A sauropod foot from the Early Cretaceous of Western Siberia, Russia. Acta Palaeontologica Polonica 47(1):117–124.

see Archosauromorpha
Pseudosuchia	see below↓

†Dasygnathoides †Nundasuchus †Phytosauria?
†Ornithosuchidae	Aenigmaspina? Dynamosuchus Ornithosuchus Riojasuchus Venaticosuchus

Acaenasuchus Euscolosuchus Revueltosaurus
Aetosauria	see Aetosauria

Benggwigwishingasuchus Lotosaurus Schultzsuchus? Qianosuchus
Ctenosauriscidae	Arizonasaurus Bromsgroveia Bystrowisuchus Ctenosauriscus Hypselorhachis Tsylmosuchus? Xilousuchus
Poposauridae	Dolichobrachium Poposaurus
Shuvosauridae	Effigia Shuvosaurus Sillosuchus

†Apatosuchus †Arganasuchus †Batrachotomus †Dagasuchus †Decuriasuchus †Etjosuchus †Fasolasuchus †Heptasuchus †Heteropelta? †Incertovenator? †Luperosuchus †Mandasuchus? †Prestosuchus †Procerosuchus †Saurosuchus †Stagonosuchus †Youngosuchus
†Rauisuchidae	Arganasuchus? Energosuchus? Jushatyria? Polonosuchus Postosuchus Procerosuchus? Rauisuchus Scolotosuchus Scythosuchus? Teratosaurus Tikisuchus? Vivaron Vjushkovisaurus? Vytshegdosuchus?
Crocodylomorpha	see below↓

†Carnufex †Dibothrosuchus †Dromicosuchus †Hesperosuchus †Heteropelta? †Junggarsuchus †Kayentasuchus †Parrishia †Phyllodontosuchus †Pseudhesperosuchus †Redondavenator †Sphenosuchus †Syntomiprosopus? †Trialestes
†Saltoposuchidae	Litargosuchus Saltoposuchus Terrestrisuchus
†Hallopodidae	Almadasuchus Hallopus Macelognathus
†Thalattosuchia	see Thalattosuchia

†Entradasuchus †Eopneumatosuchus †Kemkemia †Microchampsa †Platyognathus †Stegomosuchus †Tagarosuchus
†Protosuchidae	Coloradisuchus Dianosuchus Edentosuchus Erythrochampsa Hemiprotosuchus Hoplosuchus Orthosuchus? Pedeticosaurus? Protosuchus
†Notochampsidae	Notochampsa Orthosuchus?
†Gobiosuchidae	Cassissuchus Gobiosuchus Lisboasaurus? Zaraasuchus

Hadongsuchus Shantungosuchus Sichuanosuchus Zosuchus
Shartegosuchidae	Adzhosuchus Fruitachampsa Kyasuchus Nominosuchus Shartegosuchus