Aluvere Quarry, southern wall, Aluvere Member (Ordovician of Estonia)

Also known as Locality H5

Where: Lääne-Viru, Estonia (59.4° N, 26.4° E: paleocoordinates 30.9° S, 0.3° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Aluvere Member (Kahula Formation), Johvi (457.5 - 449.5 Ma)

• lower part of Kahula Formation (Raukas & Teedumäe [eds] 1997, Geology and Mineral Resources of Estonia, html version, http://sarv.gi.ee/geology); see also Ainsaar & Meidla (2004), p. 139 in the Abstracts and Field Guide volume of WOGOGOB-2004 8th Meeting on the Working Group on the Ordovician Geology of Baltoscandia (http://www.gi.ee/WOGOGOB/wogogob_web.pdf)

Environment/lithology: open shallow subtidal; lithified, argillaceous limestone

• "North Estonian Confacies Belt at the northern flank of the Livonian Tongue" (Kröger & Isakar, 2006)

•"Rhythmically bedded argillaceous wackestones–packstones of the Haljala Stage have been deposited in the temperate climate open marine conditions on the upper shelf or ramp (Nestor & Einasto 1997). The abundance and high diversity of benthic shelly fauna refers to the depositional environment at a moderate depth, probably within the photic zone." Ainsaar & Meidla (2004, Abstracts and Field Guide volume of WOGOGOB-2004 8th Meeting on the Working Group on the Ordovician Geology of Baltoscandia [http://www.gi.ee/WOGOGOB/wogogob_web.pdf])

• informations on lithology are from 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 87269: authorized by Björn Kröger, entered by Torsten Liebrecht on 13.03.2009, edited by Björn Kröger

Creative Commons license: CC BY (attribution)

Taxonomic list

Rhynchonellata
 Orthida - Platystrophiidae
Platystrophia pogrebovi Zuykov and Harper 2007
? Platystrophia chama Eichwald 1861
Cephalopoda
 Orthocerida - Orthoceratidae