Donguz-6, PIN 3585 (Permian of Russian Federation)

Also known as Donguz 6, Donguz VI, Dongus River

Where: Orenburg, Russian Federation (51.5° N, 55.1° E: paleocoordinates 29.0° N, 49.5° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Proelginia permiana other zone, Malokinelskaya Formation, Late/Upper Severodvinian (264.3 - 259.5 Ma)

• Ilinskoe Subassemblage of the Sokolki Assemblage; the middle part of the Late Tatarian (the later part of the Severodvinian) (Golubev 2000; Benton 2012, Geology).

•"Malokinelskaya Svita, Severodvinian Gorizont, upper Tatarian substage, Upper Permian." (Tverdokhlebov et al., 2005). Thickness of the relevant horizon is 0.6 m.

• group of beds-level stratigraphic resolution

Environment/lithology: fluvial-lacustrine; brown, red claystone and gray limestone

• "parched basin" (Tverdokhlebov et al., 2005).
• "Reddish-brown clay and pale-grey limestone." (Tverdokhlebov et al., 2005).

Size class: macrofossils

Reposited in the PIN

Primary reference: M. F. Ivakhnenko. 1983. Novye Prokolofony Vostochnoi Evropy [New Procolophonians from Eastern Europe]. Paleontologicheskii Zhurnal 1983(2):130-133 [J. Mueller/T. Liebrecht]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 93207: authorized by Johannes Mueller, entered by Torsten Liebrecht on 07.01.2010, edited by Richard Butler

Creative Commons license: CC BY (attribution)

Taxonomic list

Osteichthyes
 Tetrapoda - Chroniosuchidae
Chroniosaurus dongusensis n. gen. n. sp.2
Chroniosaurus dongusensis n. gen. n. sp.2 Tverdochlebova 1972 tetrapod
SGU 104B/198 (type) + additional skulls and numerous postcranial remains: PIN 3585/93-97, 100, 115-120, 124, SGU 104B/238
 Seymouriamorpha - Kotlassidae
"Microphon exiguus n. gen. n. sp." = Microphon exiguus, "Raphanodon tverdohlebovae n. sp." = Microphon exiguus1
"Microphon exiguus n. gen. n. sp." = Microphon exiguus Ivakhnenko 1983 tetrapod
PIN 3583/31 (type). PIN 3583/89, 92, 107–111, 113, 114, 140, 203, and 207 (all skulls); squamosals, nos. 28 and 103; maxillae, nos. 26, 101, 142, and 204; dentaries, nos. 24, 129, and 141; and teeth, nos. 130–132, 144–164, 166, 168–183
"Raphanodon tverdohlebovae n. sp." = Microphon exiguus1 Ivakhnenko 1983 tetrapod
PIN 3583/25 (type), skull
 Theriodontia -
Theriodontia indet.3 therapsid
tooth
 Therapsida -
Gorgonopsia indet.3 Seeley 1894 therapsid
Reptilia
 Procolophonomorpha - Pareiasauridae
Pareiasauridae indet.3 Lydekker 1889 parareptile
Actinopteri
 Scanilepiformes - Evenkiidae
Toyemia blumentalis3 Minikh 1995
Toyemia tverdochlebovi3 Minikh 1990
Osteichthyes
 Eurynotoidiformes - Eurynotoidiidae
Isadia suchonensis3 Minikh 1986 ray-finned fish