Stirnas-18 912.0m - 911.5m (Ordovician of Estonia)

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

• outcrop-level geographic resolution

When: Spinachitina taugourdeaui other zone, Bernati Member (Kuldiga Formation), Porkuni (445.6 - 443.7 Ma)

• Beds lumped into 0.5m increments from a continuous core.

• group of beds-level stratigraphic resolution

Environment/lithology: dolomitic, brown, gray, argillaceous marl

• Greenish-grey massive dolomitic marlstone with a faint purple and greyish-brown tinge and spots in the lower part of the interval. Recrystallized bioclasts and horizontal burrows (diameter about 1 mm) occur.

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 151991: authorized by Pete Wagner, entered by Pete Wagner on 01.11.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
Araphus sp.
Rhynchonellata
 Orthida - Dalmanellidae
Dalmanella sp.
Dalmanella sp. Hall and Clarke 1892
Strophomenata
 Strophomenida - Sowerbyellidae
Eoplectodonta sp.
Eoplectodonta sp. Kozlowski 1929
 Orthotetida - Triplesiidae
Cliftonia sp.
Cliftonia sp. Foerste 1909
Trilobita
 Phacopida - Dalmanitidae
Mucronaspis sp., "Mucronaspis mucronata" = Mucronaspis (Songxites) mucronatus
Mucronaspis sp. Destombes 1963 trilobite
"Mucronaspis mucronata" = Mucronaspis (Songxites) mucronatus Brongniart 1822 trilobite