near Haapsalu (Ordovician of Estonia)

Also known as Porkuni Stage near Haapsalu, North Estonia

Where: North Estonia, Estonia (59.0° N, 23.5° E: paleocoordinates 27.1° S, 1.6° W)

• coordinate estimated from map

When: Arina Formation, Porkuni (445.6 - 443.7 Ma)

• Material collected from Roa and Vohilaid members of Arina Fromation. Additional material collected from Adila Formation at same location.

• formation-level stratigraphic resolution

Environment/lithology: marine; lithology not reported

Size class: macrofossils

Primary reference: M. Isakar. 1991. Harjuan (Late Ordovician) new bivalves and a new gastropod from north Estonia. Tartu Riikliku Ulikooli Toimetised 12:43-60 [A. Miller/R. Krause/R. Krause]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 23296: authorized by Arnold Miller, entered by Rich Krause on 11.07.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Myalinida - Ambonychiidae
Ambonychia orvikui n. sp. clam