Valnev Horizon (lower part), platform facies, SW Novaya Zemlya (Devonian of Russian Federation)

Where: Arkhangel'skaya Oblast', Russian Federation (72.0° N, 52.0° E: paleocoordinates 3.1° N, 0.4° W)

• coordinate estimated from map

• basin-level geographic resolution

When: Valnev Horizon Formation, Pragian (410.8 - 407.6 Ma)

• Lower part of Valnev Horizon corresponds to the Nordotoechia tumida/Taimyrrhynx polaris Lona. "A Lona is a regional taxonomic unit, subordinate to a horizon and corresponding to a minor phase in the development of the basin and in the evolution of the organic world."

• formation-level stratigraphic resolution

Environment/lithology: marine; dolomitic limestone and grainstone

• Shallow-water carbonate platform.
• Lithologies read off of stratigraphic chart (fig. 2): dolomitized limestone, calcarenite, dolomite, with perhaps a minor shale unit in the middle

Collection methods: Faunal list from Fig. 3

Primary reference: S. V. Cherkesova. 1988. Lower and Middle Devonian marine deposits of the Soviet arctic and the correlation with arctic Canada. In N. J. McMillan, A. F. Embry, and D. J. Glass (eds.), Devonian of the World, Volume III 669-679 [M. Foote/M. Foote/P. Wagner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 40700: authorized by Michael Foote, entered by Michael Foote on 28.06.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Trilobita
 Proetida - Proetidae
 Lichida - Lichidae
Terranovia nalivkini Maximova 1977 trilobite
Bivalvia
 Myalinida - Ambonychiidae
 Ostreida - Pteriidae
 Ostreida - Pterineidae
"Pterinea (Cornellites) lodanensis" = Cornellites
"Pterinea (Cornellites) lodanensis" = Cornellites oyster
 Cardiidia - Sanguinolitidae
Sphenotus solenoides Hall 1870 clam
 Modiomorphida - Modiomorphidae
 Lucinida - Mactromyidae
Tentaculita
 Nowakiida - Nowakiidae
Stenolaemata
 Fenestrata -
 Trepostomida -
Anomalotoechus sp. Duncan 1939
Conodonta
 Conodontophorida - Icriodontidae
 Ozarkodinida - Polygnathidae
Strophomenata
 Strophomenida - Douvillinidae
Phragmostrophia aff. merriami Harper et al. 1967
Rhynchonellata
 Spiriferida - Delthyrididae
 Spiriferida - Hysterolitidae
 Rhynchonellida - Trigonirhynchiidae
 Rhynchonellida - Uncinulidae
 Rhynchonellida - Hebetoechiidae
Anthozoa
 Favositida - Favositidae
 Favositida - Alveolitidae
Alveolites kalvicae tabulate coral
 Favositida - Coenitidae
Coenites flagellaris tabulate coral
 Cystiphyllida - Tryplasmatidae
 Cystiphyllida - Cystiphyllidae
"Lythophyllum kuznetskiense" = Cystiphylloides (Lythophyllum) horn coral
 Cystiphyllida - Goniophyllidae
 Rugosa -
 Stauriida - Spongophyllidae
 Stauriida - Ptenophyllidae
Xystriphyllum dunstani Etheridge 1911 horn coral
 Stauriida - Mucophyllidae
 Stauriida - Halliidae
 Stauriida - Lykophyllidae