Donguz-6, PIN 3585: Late Severodvinian, Russian Federation

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Chroniosuchidae
Chroniosaurus dongusensis n. gen., n. sp. Tverdochlebova 1972
Golubev 1998
SGU 104B/198 (type) + additional skulls and numerous postcranial remains: PIN 3585/93-97, 100, 115-120, 124, SGU 104B/238
Kotlassidae
Microphon exiguus n. gen., n. sp. Ivakhnenko 1983
62 specimens
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. Ivakhnenko 1987
Bulanov 2003 1 individual
PIN 3583/25 (type), skull
unclassified
Gorgonopsia indet. Seeley 1894
Tverdokhlebov et al. 2005
Theriodontia
Theriodontia indet. (Owen 1876)
Tverdokhlebov et al. 2005 1 element
tooth
Reptilia - Pareiasauridae
Pareiasauridae indet. Lydekker 1889
Tverdokhlebov et al. 2005
Eurynotoidiformes - Eurynotoidiidae
Isadia suchonensis Minikh 1986
Tverdokhlebov et al. 2005
Actinopteri - Scanilepiformes - Evenkiidae
Toyemia tverdochlebovi Minikh 1990
Tverdokhlebov et al. 2005
Toyemia blumentalis Minikh 1995
Tverdokhlebov et al. 2005
see common names

Geography
Country:Russian Federation State/province:Orenburg County:Orenburg
Coordinates: 51.5° North, 55.1° East (view map)
Paleocoordinates:29.0° North, 49.5° East
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period: Permian Epoch: Guadalupian
Stage: Capitanian 10 m.y. bin: Permian 4
Key time interval: Late Severodvinian Other zone:  Proelginia permiana
Age range of interval: 264.28 - 259.51 m.y. ago
Stratigraphy
Formation:Malokinelskaya
Stratigraphic resolution:group of beds
Stratigraphy comments: 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.
Lithology and environment
Primary lithology:brown,red claystone
Secondary lithology:gray "limestone"
Lithology description: "Reddish-brown clay and pale-grey limestone." (Tverdokhlebov et al., 2005).
Environment:fluvial-lacustrine indet. Tectonic setting:foreland basin
Geology comments: "parched basin" (Tverdokhlebov et al., 2005).
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Articulated whole bodies:none
Collection methods and comments
Reason for describing collection:taxonomic analysis
Museum repositories:PIN
Metadata
Also known as:Donguz 6, Donguz VI, Dongus River
Database number:93207
Authorizer:J. Mueller, R. Butler Enterer:T. Liebrecht, R. Butler
Modifier:R. Butler Research group:vertebrate
Created:2010-01-07 11:58:11 Last modified:2017-12-04 08:24:12
Access level:the public Released:2010-01-07 11:58:11
Creative Commons license:CC BY
Reference information

Primary reference:
31499. M. F. Ivakhnenko. 1983. Novye Prokolofony Vostochnoi Evropy [New Procolophonians from Eastern Europe]. Paleontologicheskii Zhurnal 1983(2):130-133 [J. Mueller/T. Liebrecht]

Secondary references:

63657 V. V. Bulanov. 2003. Evolution and systematics of seymouriamorph parareptiles. Paleontological Journal 37(Suppl. 1):S1-S105 [R. Butler/R. Butler]
63602 V. K. Golubev. 1998. Revision of the Late Permian Chroniosuchians (Amphibia, Anthracosauromorpha) from Eastern Europe. Paleontological Journal 32(4):390-401 [R. Butler/R. Butler]
63997 V. K. Golubev. 2000. The Faunal Assemblages of Permian Terrestrial Vertebrates from Eastern Europe. Paleontological Journal 34:S211-S224 [R. Butler/R. Butler]
14547ETE V. P. Tverdokhlebov, G. I. Tverdokhlebova, A. V. Minikh, M. V. Surkov, and M. J. Benton. 2005. Upper Permian vertebrates and their sedimentological context in the South Urals, Russia. Earth-Science Reviews 69:27-77 [M. Carrano/M. Carrano/M. Carrano]