Didymothyris Community, West Khatanzeya Fm., Novaya Zemlya region (Silurian of Russian Federation)

Where: Russian Federation (71.0° N, 58.0° E: paleocoordinates 4.0° N, 1.5° W)

• coordinate estimated from map

• basin-level geographic resolution

When: West Khatanzeya Formation, Ludlow (427.4 - 423.0 Ma)

• formation-level stratigraphic resolution

Environment/lithology: marine; peloidal, shelly/skeletal lime mudstone and dolomitic, peloidal, shelly/skeletal, gray wackestone

• [see lithology] "The Didymothyris were buried in situe with no evidence for sorting or transport (all shells articulated)." "...the Didymothyris Community and ostracode communities occur mainly at the edges of rugosan biostromes and are also found as discrete patches between biostromes."
• "...shallow water, pelletal, skeletal, calcareous muds with ostracodes and algal mates in weakly agitate, quiet water. In stratigraphic sections the community consists of lenticular coquina interbeds and pockets among dark-gray, finely pelletal, skeletal wackestones having a lenticular bed distribution of brachiopod, gastropod, and ostracode. These limestones are locally dolomitized."

Primary reference: L. V. Nekhorosheva and D. K. Patrunov. 1999. The chief Wenlockian-Lochkovian benthic communities of the Vaigach to southern Novaya Zemlya region. In A. J. Boucot and J. D. Lawson (eds.), Paleocommunities--a case study from the Silurian and Lower Devonian 488-495 [M. Foote/M. Foote/M. Foote]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 23636: authorized by Michael Foote, entered by Michael Foote on 18.07.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Gastropoda
  -
Gastropoda indet.
Gastropoda indet. Cuvier 1795 snail
Rhynchonellata
 Athyridida - Athyrididae
Didymothyris didyma
Didymothyris didyma Dalman 1828
Ostracoda
 Leperditicopida - Isochilinidae
Kiaeria sp.
Kiaeria sp. Glebowskaja 1949 ostracod
 Leperditicopida - Leperditiidae
Herrmannina sp.
Herrmannina sp. Kegel 1933 ostracod
 Podocopida -
Calcaribeyrichia sp.