Well 130 Vruda (Ordovician of Russian Federation)

Where: Leningrad oblast, Russian Federation (59.6° N, 29.2° E: paleocoordinates 29.7° S, 1.2° E)

• local area-level geographic resolution

When: Vruda Formation, Oandu (453.0 - 451.8 Ma)

• formation-level stratigraphic resolution

Environment/lithology: marine; dolomite

• Dolomites are fine- and microcrystalline marly, bluish- and greenish-gray, in areas variegated with dolomites and dolomitized limestones. At the top are lens-shaped accumulations of detritus and highly leached imprints of brachiopod fauna with pyritized films along the cavern walls.

Size classes: macrofossils, mesofossils, microfossils

Primary reference: N.U. Karpuzova and M.N. Tokareva. 2014. Legend of the Central European series of sheets of the State Geological Map of the Russian Federation, scale 1:1,000,000 (third generation). [S. Peters/E. Mazko]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 235821: authorized by Shanan Peters, entered by Evgeny Mazko on 07.08.2024

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
 Coniferales -
Trilobita
 Phacopida - Pterygometopidae
"Chasmops maximus" = Toxochasmops (Schmidtops) maxima
"Chasmops maximus" = Toxochasmops (Schmidtops) maxima Schmidt 1881 trilobite
 Lichida - Lichidae
 Asaphida - Asaphidae
Pseudobasilicus kegelensis Schmidt 1898 trilobite
Ostracoda
 Palaeocopida - Tetradellidae
"Tallinnopsis grandis" = Ahla
"Tallinnopsis grandis" = Ahla ostracod
 Palaeocopida - Oepikellidae
 Palaeocopida - Piretellidae
 Palaeocopida - Sigmoopsidae
Strophomenata
 Strophomenida - Sowerbyellidae
Sowerbyella trivia Rõõmusoks 1959
Sowerbyella forumi Rõõmusoks 1959
 Strophomenida - Rafinesquinidae
Kiaeromena cryptoides, "Rafinesquina poljensis" = Kjaerina poljiensis
"Rafinesquina poljensis" = Kjaerina poljiensis Alichova 1951
 Strophomenida - Strophomenidae
"Actinomena asmusi" = Longvillia asmusi, "Strophomena asmusi" = Longvillia asmusi
"Actinomena asmusi" = Longvillia asmusi Verneuil 1845
"Strophomena asmusi" = Longvillia asmusi Verneuil 1845
 Billingsellida - Clitambonitidae
Clinambon anomalus Schlotheim 1822
Rhynchonellata
 Orthida - Harknessellidae
 Orthida - Platystrophiidae