Metro tunnel under Stvanice Island in Vltava River, Prague (Ordovician of Czech Republic)

Where: Prague, Czech Republic (50.1° N, 14.4° E)

• Paleocoordinates: 53.1° S, 8.9° E (Wright 2013)

• coordinate estimated from map

• small collection-level geographic resolution

When: Kosov Formation, Kosovian (445.6 - 443.7 Ma)

• Listed as Uppermost Middle Berounian; Uppermost portion

• group of beds-level stratigraphic resolution

Environment/lithology: transition zone or lower shoreface; lithified claystone

• Ash grey to grey green claystones with variable admixture of silt and clastic muscovite with huge concretions

Size classes: macrofossils, mesofossils

Primary reference: R. L. Parsley. 1990. Aristocystites, a Recumbent Diploporid (Echinodermata) from the Middle and Late Ordovician of Bohemia, ČSSR. Journal of Paleontology 64(2):278-293 [P. Wagner/P. Wagner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 196724: authorized by Pete Wagner, entered by Pete Wagner on 02.10.2018

Creative Commons license: CC0 (CC0)

Taxonomic list

• Parsley notes that there are Kosov formation specimens, but he's unclear if the Kosov is from this particular locality.
 Sphaeronitida - Aristocystitidae
Aristocystites metroi Parsley 1990