Stirnas-18 908.5. - 908.0 m (Ordovician of Estonia)

Where: Estonia (55.9° N, 21.6° E: paleocoordinates 30.3° S, 1.3° W)

• outcrop-level geographic resolution

When: Conochitina scabra other zone, Edole Member (Kuldiga Formation), Porkuni (445.6 - 443.7 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: brown, gray, silty limestone and gray, green, silty, calcareous marl

• Greenish-grey to grey silty calcareous marlstone intercalating with silty brownish-grey to grey limestone (Fig. 5J–L). Stromatolite-like microlaminated structures occur at some levels (Fig. 5K); strong bioturbation with burrows up to 2–3 mm in diameter is characteristic.

Size class: macrofossils

Primary reference: L. Hints, O. Hints, D. Kaljo, T. Kiipli, P. Männik, J. Nõlvak, and H. Pärnaste. 2010. Hirnantian (latest Ordovician) bio- and chemostratigraphy of the Stirnas-18 core, western Latvia. Estonian Journal of Earth Sciences 59(1):1-24 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 151997: authorized by Pete Wagner, entered by Pete Wagner on 01.11.2013, edited by Björn Kröger

Creative Commons license: CC BY (attribution)

Taxonomic list

 Phacopida - Dalmanitidae
Mucronaspis sp. Destombes 1963 trilobite
Mucronaspis mucronata Brongniart 1822 trilobite
 Tentaculitida - Tentaculitidae
Tentaculites sp. von Schlotheim 1820
 Orthotetida - Triplesiidae
Cliftonia sp. Foerste 1909
Cliftonia aff. psittacina Wahlenberg 1821
 Orthotetida - Chilidiopsidae
Coolinia sp. Bancroft 1949
 Strophomenida - Leptostrophiidae
Eostropheodonta sp. Bancroft 1949
 Strophomenida - Glyptomenidae
Proboscisambon sp. Havlicek and Mergl 1982
 Athyridida - Meristellidae
Hindella sp. Davidson 1882
Hindella cf. cassidea Dalman 1828
 Rhynchonellida - Trigonirhynchiidae