Gracianella sublepida Community, Early Pridolian, N. Urals (Silurian of Russian Federation)

Where: Russian Federation (61.0° N, 60.0° E: paleocoordinates 4.1° N, 7.7° E)

• coordinate based on political unit

• local area-level geographic resolution

When: Pridoli (423.0 - 419.2 Ma)

• Bobrovka Regional Stage.

Environment/lithology: marine; shelly/skeletal, gray limestone

• "Bed overlies dark, bedded Lst, interbedded w/ shale and sst, that contains abundant Atrypoidea camelina scheii. Bed underlies thin-bedded, dark gray Lst, interbedded with calcareous shale, that contains a very poor fauna, mainly gastropods. Gracianella specimens mostly articulated. Relatively quiet water environment in BA 2-3 region, particularly as suggested by close association with the Atrypoidea Community."
• "Occurs as dense accumulations, coquinas of the nominative species in dark gray limestone beds, having a thickness of 1.5 to 2.0 m, in the Bobrovka Regional Stage."

Primary reference: V. P. Sapelnikov, O. V. Bogoyavlenskaya, L. I. Mizens and V. P. Shuysky. 1999. Silurian and Early Devonian benthic communities of the Ural-Tien Shan region. In A. J. Boucot and J. D. Lawson (eds.), Paleocommunities--a case study from the Silurian and Lower Devonian 510-544 [M. Foote/M. Foote/M. Foote]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 24751: authorized by Michael Foote, entered by Michael Foote on 19.08.2002, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

Rhynchonellata
 Atrypida - Atrypinidae
 Atrypida - Lissatrypidae
Gastropoda
  -
Gastropoda sp. Cuvier 1797 snail
genus name in quotes
Gastropoda sp. Cuvier 1797 snail
 Euomphalina - Euomphalidae
Euomphalidae sp. White 1877 snail
 Bellerophontida -
Bellerophontoidea sp. M'Coy 1851 snail
genus name in quotes
 Murchisoniina -
Murchisonioidea indet. Koken 1896 snail
Cephalopoda
 Nautiloidea -
Nautiloidea indet. Agassiz 1847 nautiloid
orthoceratites
Anthozoa
 Favositida - Favositidae
Favosites sp. Lamarck 1816 tabulate coral
 Favositida - Alveolitidae
Alveolites sp. Lamarck 1801 tabulate coral