Borehole M-77, Ülgase Fm., Bed B (Cambrian of Estonia)

Where: Harju, Estonia (59.4° N, 25.7° E: paleocoordinates 45.0° S, 12.7° W)

• coordinate stated in text

When: Agnostus pisiformis trilobite zone, Ülgase Formation, Maentwrogian (501.0 - 485.4 Ma)

• "Bed B", in Holmer & Popov (1990). PJW: Bed B is the base, which is Agnostus pisiformis zone

• bed-level stratigraphic resolution

Environment/lithology: shallow subtidal; quartzose, brown, gray siltstone and green claystone

Size classes: macrofossils, mesofossils

Primary reference: L. E. Holmer and L. E. Popov. 1990. The acrotretacean brachiopod Ceratreta tanneri (Metzger) from the Upper Cambrian of Baltoscandia. Geologiska Föreningen i Stockholm Förhandlingar 112(3):249-263 [B. Kröger/B. Kröger]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 191179: authorized by Björn Kröger, entered by Björn Kröger on 13.01.2018

Creative Commons license: CC BY (attribution)

Taxonomic list

 Acrotretida - Ceratretidae
Ceratreta tanneri Metzger 1922
 Acrotretida - Acrotretidae
 Lingulida - Obolidae
Oepikites fragilis Popov and Khazanovitch 1984
 Hyolithelminthida - Torellellidae