Vidukle-61 borehole, Riga Fm., 1310.0 -? m (Silurian of Lithuania)

Where: Lithuania (55.4° N, 22.9° E: paleocoordinates 20.2° S, 0.8° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: M. testis graptolite zone, Riga Formation, Homerian (430.5 - 427.4 Ma)

• formation-level stratigraphic resolution

Environment/lithology: marine; shale

Size classes: macrofossils, mesofossils

Collection methods: core

Primary reference: P. Lapinskas, J. Paskevicius, and J. Jacyna. 1985. New data on the stratigraphy and correlation of the South - East Baltic Wenlockian and Ludlovian (Silurian). Geologija 629:29-40 [B. Kröger/B. Kröger]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 207375: authorized by Björn Kröger, entered by Björn Kröger on 09.01.2020

Creative Commons license: CC BY (attribution)

Taxonomic list

Rhynchonellata
 Atrypida - Glassiidae
Pterobranchia
 Graptoloidea - Retiolitidae
 Graptoloidea - Monograptidae
"Monograptus testis" = Testograptus testis Barrande 1859 graptolite
Monograptus testis inornatus
Monograptus flemingi graptolite
Monograptus flemingi flemingi
 Graptoloidea - Cyrtograptidae