Karagachka (locality 34), PIN 2973 (Triassic of Russian Federation)

Also known as Karagatschka

Where: Orenburg, Russian Federation (51.4° N, 55.5° E: paleocoordinates 33.7° N, 43.5° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Donguz Formation, Anisian (247.2 - 242.0 Ma)

• The Donguz Svita/Gorizont is the "characteristic" tetrapod assemblage for the Perovkan Land Vertebrate Faunachron of Lucas, considered to be of Anisian age (see Lucas 2010). By contrast, Fröbisch (2009) suggested that the lower part of the Donguz Svita/Gorizont is referable to the Nonesian LVF, is of early Anisian age, and can be correlated which subzone B of the Cynognathus AZ of South Africa, while the upper part of the Donguz Svita/Gorizont is referable to the Perovkan LVF, is of late Anisian age, and can be correlated which subzone C of the Cynognathus AZ of South Africa. It is not clear whether this locality belongs to the lower or upper part of the Donguz Svita/Gorizont

• group of beds-level stratigraphic resolution

Environment/lithology: deltaic; medium-grained, gray, green, red sandstone

• "Tributary channel"
• "Green-grey to buff-red, medium-grained, cross-bedded sand"

Size class: macrofossils

Reposited in the PIN

Primary reference: L. P. Tatarinov. 1973. Cynodonts of Gondwanan habit in the Triassic of the USSR. Paleontological Journal 1973(2):200-205 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 97410: authorized by Richard Butler, entered by Richard Butler on 26.07.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

Amphibia
 Temnospondyli -
"Eryosuchus antiquus n. sp." = Eryosuchus tverdochlebovi4
"Eryosuchus antiquus n. sp." = Eryosuchus tverdochlebovi4 Ochev 1966 tetrapod
PIN 2973/65, lower jaw fragment (holotype)
 Temnospondyli - Plagiosauridae
"Plagiosternum paraboliceps" = Plagiorophus paraboliceps5
"Plagiosternum paraboliceps" = Plagiorophus paraboliceps5 Konzhukova 1955 tetrapod
Osteichthyes
 Therocephalia - Bauriidae
"Scalenodon boreus n. sp." = Antecosuchus boreus
"Scalenodon boreus n. sp." = Antecosuchus boreus Tatarinov 1973 therapsid
PIN 2973/1, upper postcanine tooth
 Dicynodontia - Stahleckeriidae
"Uralokannemeyeria vjuschkovi n. gen. n. sp." = Uralokannemeyeria vjuschkovi1, "Edaxosaurus edentatus n. gen. n. sp." = Uralokannemeyeria vjuschkovi3
"Uralokannemeyeria vjuschkovi n. gen. n. sp." = Uralokannemeyeria vjuschkovi1 Danilov 1971 dicynodont
SGU D-104/1, skull (holotype); SGU D-104/2, incomplete skull, ilium and tibia
"Edaxosaurus edentatus n. gen. n. sp." = Uralokannemeyeria vjuschkovi3 Danilov 1971 dicynodont
SGU D-104/4-1, incomplete maxilla
Reptilia
 Diapsida - Erythrosuchidae
"Erythrosuchus magnus n. sp." = Uralosaurus magnus2
"Erythrosuchus magnus n. sp." = Uralosaurus magnus2 Ochev 1980 archosauromorph
PIN 2973/70, left pterygoid (holotype); PIN 2973/71, dentary; PIN 2973/72-79, teeth