Drūkšiai-6 borehole, Drūkšiai Fm. (Ordovician of Belarus)

Also known as Kazimirovo

Where: Belarus (55.6° N, 26.6° E: paleocoordinates 34.9° S, 1.1° E)

• coordinate based on nearby landmark

When: clingani graptolite zone, Alvitas Formation, Oandu (457.5 - 452.0 Ma)

• PJW: Paškevičius calls this the Drūkšiai Formation. However, Hints et al. (2018) have the Drūkšiai as much older; the two works clearly are using the same name for two different rock units. Therefore, I replaced Druksiai with the contemporaneous Alvitas.

• formation-level stratigraphic resolution

Environment/lithology: limestone and gray, blue, calcareous marl

• "The layers of bluish-gray marls and calcareous clayey marls within biomorphic

•limestone of the Drūkšiai Formation"

Size classes: macrofossils, mesofossils

Primary reference: J. Paškevičius. 2016. Pecularities of the lithology and fauna of the early Katian (Ordovician) in the Lithuanian facies zone. Geologija. Geografija 2(2):49-61 [B. Kröger/B. Kröger]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 192883: authorized by Björn Kröger, entered by Björn Kröger on 24.04.2018

Creative Commons license: CC BY (attribution)

Taxonomic list

Strophomenata
 Strophomenida - Sowerbyellidae
Sowerbyella sp. Jones 1928
Sowerbyella tenera Rõõmusoks 1959
 Strophomenida - Rafinesquinidae
Virunites orvikui Oraspold 1956
 Strophomenida - Strophomenidae
Rhynchonellata
 Orthida - Dalmanellidae
Trilobita
 Asaphida - Asaphidae
Asaphus sp. Brongniart 1822 trilobite
 Phacopida - Pterygometopidae
Chasmops sp. M'Coy 1849 trilobite