Where: Gotland, Sweden (57.3° N, 18.6° E: paleocoordinates 16.6° S, 2.2° W)

• coordinate based on unpublished field data

• outcrop-level geographic resolution

When: Polygnathoides siluricus conodont zone, När Formation (Hemse Group), Ludfordian (425.6 - 423.0 Ma)

• "0-0.05 m below the base of the Eke Beds"

• formation-level stratigraphic resolution

Environment/lithology: deep subtidal; lithified lime mudstone

Size class: microfossils

Preservation: original phosphate

Collection methods: chemical, acetic, sieve,

Primary reference: L. Jeppsson. 1983. Silurian conodont faunas from Gotland. Fossils and Strata 15:121-144 [E. Jarochowska/E. Jarochowska]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 184651: authorized by Emilia Jarochowska, entered by Emilia Jarochowska on 15.03.2017

Creative Commons license: CC BY (attribution)