Tapa (Ordovician of Estonia)

Also known as Locality N1

Where: Lääne-Viru, Estonia (59.3° N, 26.0° E: paleocoordinates 29.5° S, 0.4° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Saunja Formation, Nabala (450.5 - 449.9 Ma)

• The Nabala Regional Stage is formerly known as the lower part of the "Lyckholm'sche Schicht" (Raukas & Teedumäe [eds.] 1997, Geology and Mineral Resources of Estonia, html version, http://sarv.gi.ee/geology)

• formation-level stratigraphic resolution

Environment/lithology: open shallow subtidal; lithified lime mudstone

• "North Estonian Confacies Belt at the northern flank of the Livonian Tongue" (Kröger & Isakar, 2006)
• The Saunja Fm. comprises "up-to-28-m-thick micritic limestones" being "lithologically uniform and occur all over Estonia" (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 87296: authorized by Björn Kröger, entered by Torsten Liebrecht on 14.03.2009, edited by Björn Kröger and Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

Trilobita
 Phacopida - Pterygometopidae
Valdariops kernuensis2 Rõõmusoks 2000 trilobite
Cephalopoda
 Orthocerida - Orthoceratidae
Rhynchonellata
 Orthida - Draboviidae
Pionodema costata1 Hints 1975
Hirnantia ? sp.1 Lamont 1935