Oandu Stage, North Estonia, Ragavere Fm, Rookula Core - Patzkowsky (Ordovician of Estonia)

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

• coordinate estimated from map

When: Torremagi Member (Ragavere Formation), Oandu (457.5 - 452.0 Ma)

• member-level stratigraphic resolution

Environment/lithology: peritidal; burrowed, argillaceous marl and argillaceous limestone

• Micro- to cryptocrystalline, argillaceous limestones and marls with burrows and discontinuity surfaces.

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 37810: authorized by Mark Patzkowsky, entered by Zack Krug on 24.03.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

 Bothriocidaroida - Bothriocidaridae
Bothriocidaris sp. d'Eichwald 1859 sea urchin
 Strophomenida - Sowerbyellidae
Sowerbyella tenera Rõõmusoks 1959
Vermiporella sp. Stolley 1893