Trubín (Ordovician of Czech Republic)

Where: Prague, Czech Republic (60.0° N, 14.0° E: paleocoordinates 31.7° S, 7.7° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Vinice Formation, Berounian (457.9 - 449.8 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: offshore shelf; lithified, silty, sandy claystone

• The "bimodal" mixture of sand and shale may indicate proximity to shoreline, in which case this may be too shallow for inclusion, but presence of silt argues against this; "ill-aerated, soft-bottom environment below wave base". Oxygen levels reduced
• Claystones with a variable admixture of silt and sand

Size classes: macrofossils, mesofossils

Primary reference: M. Polechová. 2022. The bivalve fauna from the Letná Formation (Upper Ordovician) of Bohemia: Significance for palaeobiogeography, palaeoecology and diversification of bivalves. Geobios 70:55-73 [P. Wagner/P. Wagner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 233137: authorized by Pete Wagner, entered by Pete Wagner on 14.01.2024

Creative Commons license: CC BY (attribution)

Taxonomic list

• BA4 Deanaspis-Aegiromena community; possibly a "pooled sample" but unsure
Bivalvia
 Unioni - Pseudarcidae
? Pseudarca incola Barrande 1881 clam
 Nuculida - Praenuculidae
Praenucula bohemica Barrande 1881 clam