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• coordinate based on unpublished field data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, Millklint Member (När Formation), Ludfordian (425.6 - 423.0 Ma)

• Hemse Beds, Hemse Marl NW part, according to Hede (1925). The conodont fauna indicates a position very near the boundary between the A. ploeckensis and the P. siluricus zones. It is probably an outlier (alternatively it is an inlier).

• member-level stratigraphic resolution

Environment/lithology: lithified marl

Size class: microfossils

Preservation: original phosphate

Collection methods: acetic, sieve

Primary reference: L. Jeppsson. 2005. Conodont-based revisions of the Late Ludfordian on Gotland, Sweden. Gff 127(4):273-282 [E. Jarochowska/E. Jarochowska]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 184345: authorized by Emilia Jarochowska, entered by Emilia Jarochowska on 21.02.2017

Creative Commons license: CC BY (attribution)