Oandu Stage, North Estonia, Sibila Core - Patzkowsky (Ordovician of Estonia)

Where: Sibila, Estonia (59.0° N, 26.0° E: paleocoordinates 31.8° S, 0.4° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Hirmuse Formation, Oandu (457.5 - 452.0 Ma)

Environment/lithology: shallow subtidal; argillaceous marl and carbonaceous claystone

• Argillaceous marls and carbonate clays intercalating with more or les argillaceous limestones.

Collection methods: core,

Primary reference: L. Hints. 1998. Oandu stage (Caradoc) in central North Estonia. Proceedings of the Estonian Academy of Science 47(3):158-172 [M. Patzkowsky/Z. Krug/Z. Krug]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 37805: authorized by Mark Patzkowsky, entered by Zack Krug on 24.03.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

Trilobita
 Phacopida - Pterygometopidae
Toxochasmops sp. McNamara 1979 trilobite
Strophomenata
 Billingsellida - Clitambonitidae
Vellamo sp. Opik 1930
 Strophomenida - Sowerbyellidae
Sowerbyella tenera Rõõmusoks 1959
 Strophomenida - Rafinesquinidae
Kjaerina orvikui Mannil 1956
Rhynchonellata
 Orthida - Dalmanellidae
 Orthida - Platystrophiidae
Craniata
 Craniopsida - Craniopsidae