Valnev Horizon (upper 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)

• Upper part of Valnev Horizon corresponds to the Nymphorhynchia pseudolivonia 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 shale

• Shallow-water carbonate platform.
• Lithologies read off of stratigraphic chart (fig. 2): dolomitized limestone; shale interbeds; calcarenite; layered limestones, bioherms, and reefs

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 40701: authorized by Michael Foote, entered by Michael Foote on 28.06.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Pribilina aff. inaequicostata
Pribylina is valid name of an ostracode; this is listed under trilobites
Trilobita
 Proetida - Tropidocoryphidae
 Proetida - Proetidae
Bivalvia
 Modiomorphida - Modiomorphidae
 Nuculida - Nuculidae
Tentaculita
 Nowakiida - Nowakiidae
Stenolaemata
 Fenestrida - Fenestellidae
 Fenestrata -
Conodonta
 Conodontophorida - Icriodontidae
 Ozarkodinida - Polygnathidae
Rhynchonellata
 Spiriferida - Delthyrididae
 Rhynchonellida - Trigonirhynchiidae
Anthozoa
 Favositida - Favositidae
Favosites ex gr. goldfussi Lecompte 1939 tabulate coral
 Favositida - Alveolitidae
Alveolites distinctus tabulate coral
 Cystiphyllida - Cystiphyllidae
"Lythophyllum originale" = Cystiphylloides (Lythophyllum), "Patridophyllum obliterum" = Cystiphylloides (Lythophyllum), Zonophyllum polaricum
"Lythophyllum originale" = Cystiphylloides (Lythophyllum) horn coral
"Patridophyllum obliterum" = Cystiphylloides (Lythophyllum) horn coral
 Stauriida - Ptenophyllidae
 Stauriida - Lykophyllidae