Starokoltaevo III (Locality 10) (Triassic of Russian Federation)

Also known as Koltayevo III

Where: Bashkortostan, Russian Federation (52.5° N, 53.5° E: paleocoordinates 33.6° N, 41.5° E)

• coordinate estimated from map

• 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 (to which this locality would belong) 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

Environment/lithology: deltaic; gray, yellow sandstone

• "deltaic deposits"
• "Buff-grey, variably grained sandstone with large-scale cross-bedding"

Size class: macrofossils

Reposited in the PIN

Primary reference: N. N. Kalandadze and A. G. Sennikov. 1985. New reptiles from the Middle Triassic in the southern Ural forelands. Paleontological Journal 19(2):73-80 [J. Fröbisch/M. Walther/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 97415: authorized by Richard Butler, entered by Richard Butler on 26.07.2010, edited by Matthew Carrano

Creative Commons license: CC BY (attribution)

Taxonomic list

• Battail & Surkov (2000) listed Calleonasus furvus, Rabidosaurus cristatus and Rhadiodromus klimovi as from Koltaevo II (PBDB 97414); however, this is contradicted by Tverdokhlebov et al. (2003), who listed these taxa as from Starokoltaevo III and so they are entered here.

•Gower & Sennikov (2000) listed Dongusuchus efremovi & Uralosaurus magnus as from Koltaevo II (PBDB 97414); however, this is contradicted by Tverdokhlebov et al. (2003), who list these taxa as from Starokoltaevo III and so they are entered here.

Amphibia
 Temnospondyli -
Eryosuchus sp. Ochev 1966 tetrapod
 Temnospondyli - Plagiosauridae
Plagioscutum ochevi, "Plagiosternum paraboliceps" = Plagiorophus paraboliceps
Plagioscutum ochevi Shishkin 1986 tetrapod
"Plagiosternum paraboliceps" = Plagiorophus paraboliceps Konzhukova 1955 tetrapod
Reptilia
 Thecodontia -
Jushatyria vjushkovi n. gen. n. sp.
Jushatyria vjushkovi n. gen. n. sp. Sennikov 1985 archosaur
PIN 2867/5, incomplete left maxilla (holotype); PIN 2867/6, cervical vertebra
 Avemetatarsalia -
Dongusuchus efremovi Sennikov 1988 archosaur
PIN 2866/37 (formerly SGU 104/3880), anterior cervical vertebra; possibly from Starokoltaevo II (see notes)
 Loricata - Rauisuchidae
Vjushkovisaurus berdjanensis Ochev 1982 rauisuchid
 Diapsida - Erythrosuchidae
"Erythrosuchus magnus" = Uralosaurus magnus
"Erythrosuchus magnus" = Uralosaurus magnus Ochev 1980 archosauromorph
PIN 2866/38, 39 (formerly SGU 104/3857, 58), dorsal vertebrae; possibly from Starokoltaevo II (see notes)
Osteichthyes
 Dicynodontia - Kannemeyeriidae
Rhadiodromus klimovi Efremov 1940 dicynodont
PIN 2866/1, skull fragments; possibly from Starokoltaevo II (see notes)
 Dicynodontia - Dicynodontidae
Rabidosaurus cristatus Kalandadze 1970 dicynodont
PIN 2866/8, 9, skull fragments; possibly from Starokoltaevo II (see notes)
 Dicynodontia -
Elatosaurus facetus n. gen. n. sp., Nasoplanites danilovi n. gen. n. sp., Cristonasus koltaeviensi n. gen. n. sp., Parvobestiola bashkiriensis n. gen. n. sp.
Elatosaurus facetus n. gen. n. sp. Kalandadze 1985 dicynodont
PIN 2867/1, nasal bone (holotype). Referred maxilla fragment
Nasoplanites danilovi n. gen. n. sp. Surkov 1999 dicynodont
SGU 161/37, premaxilla
Cristonasus koltaeviensi n. gen. n. sp. Surkov 1999 dicynodont
SGU 161/29, premaxilla
Parvobestiola bashkiriensis n. gen. n. sp. Surkov 1999 dicynodont
SGU 161/188, partial skull roof
 Dipnoi - Ceratodontidae
Ceratodus recticristatus Vorobyeva and Minikh 1968 lungfish