Aruküla, Ristna substage (Ordovician of Estonia)

Where: Vinni, Estonia (59.4° N, 25.1° E: paleocoordinates 32.8° S, 1.3° W)

• coordinate estimated from map

When: Pääsküla Member (Kahula Formation), Keila (460.9 - 455.8 Ma)

• "D2 alpha = Ristna zone ", in Rõõmusoks (1959)

Environment/lithology: marine; limestone

Size classes: macrofossils, mesofossils

Primary reference: A. Rõõmusoks. 1959. Strophomenoidea des Ordoviziums und Silurs von Estland 1. Die Gattung SOWERBYELLA Jones. Tartu Riikliku Ülikooli Toimetised 11-50 [B. Kröger/B. Kröger]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 174288: authorized by Björn Kröger, entered by Björn Kröger on 09.11.2015

Creative Commons license: CC BY (attribution)

Taxonomic list

Strophomenata
 Strophomenida - Sowerbyellidae