Tuhala carst field (Ordovician of Estonia)

Also known as Locality V6; S of Tallinn

Where: Harju, Estonia (59.2° N, 25.0° E: paleocoordinates 28.7° S, 0.9° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Kõrgessaare Formation, Vormsi (449.9 - 449.5 Ma)

• Given that the position of the Tuhala Locality is in northern Estonia, it is most likely within the Kõrgessaare Fm. (see fig. 55 in Raukas & Teedumäe [eds.] 1997, Geology and Mineral Resources of Estonia, html version, http://sarv.gi.ee/geology);

•The Vormsi Regional Stage is formerly known as the middle part of the "Lyckholm'sche Schicht" (Raukas & Teedumäe [eds.] 1997)

Environment/lithology: open shallow subtidal; lithified, shelly/skeletal limestone

• "North Estonian Confacies Belt at the northern flank of the Livonian Tongue" (Kröger & Isakar, 2006)
• The Kõrgessaare Fm. is composed of "bioclastic limestones" (Raukas & Teedumäe [eds.] 1997, Geology and Mineral Resources of Estonia, html version, http://sarv.gi.ee/geology)

Size class: macrofossils

Preservation: cast

Primary reference: B. Kröger and M. Isakar. 2006. Revision of annulated orthoceridan cephalopods of the Baltoscandic Ordovician. Fossil Record 9(1):137-163 [B. Kröger/B. Kröger/B. Kröger]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 87309: authorized by Björn Kröger, entered by Torsten Liebrecht on 14.03.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Cephalopoda
 Orthocerida - Dawsonoceratidae
Palaeodawsonocerina senckenbergi