Collarothyris Community, Kalvitza Fm., Novaya Zemlya region (Silurian of Russian Federation)

Where: Russian Federation (71.0° N, 58.0° E: paleocoordinates 6.7° N, 2.0° W)

• coordinate estimated from map

• basin-level geographic resolution

When: Kalvitza Formation, Pridoli (423.0 - 419.2 Ma)

• formation-level stratigraphic resolution

Environment/lithology: marine; shelly/skeletal, gray, green, argillaceous mudstone and shelly/skeletal, argillaceous wackestone

• "This community is developed on argillaceous muds, deposited in a shallow, quiet water environment interpreted as belonging to BA 2."
• "Occurs in lenticular bands and thin beds of conquinoid limestone within greenish-gray, shaly mudstone and argillaceous biomicrite."

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 23643: authorized by Michael Foote, entered by Michael Foote on 18.07.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

 Podocopida -
 Palaeocopida -
 Leperditicopida - Leperditiidae
 Leperditicopida -
 Athyridida - Athyrididae
Collarothyris canaliculata Wenjukow 1899
includes subspp. canaliculata, trapezoideus, and lata, in stratigraphic successtion
 Spiriferida - Delthyrididae
 Atrypida - Lissatrypidae
Atrypoidea insigne
subsp. grebenensis
Atrypoidea camelina
subsp. karpovensis
 Atrypida -
Atrypoidea scheii Holtedahl 1914
 Rhynchonellida - Trigonirhynchiidae
Hemitoechia distincta Nikiforova 1970
 Cystoporida - Fistuliporidae
 Ozarkodinida -
"Ozarkodina remscheidensis" = Nicollidina remscheidensis
"Ozarkodina remscheidensis" = Nicollidina remscheidensis Ziegler 1960 conodont
specimens transitional between subspp. eosteinhornensis and remscheidensis
 Favositida - Favositidae
  - Anthinocrinidae
"Anthinocrinus" sp. Stukalina 1961
crinoid columnal taxon