Where: Gotland, Sweden (57.5° N, 18.6° E: paleocoordinates 21.6° S, 2.8° W)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Upper Visby Formation, Sheinwoodian (433.4 - 430.5 Ma)

• see previous,

•"upper Visby marl", of Regnell 1945

• formation-level stratigraphic resolution

Environment/lithology: marine; marl

Size classes: macrofossils, mesofossils

Preservation: replaced with silica

Collection methods: bulk,

• see previous

Primary reference: G. Lindström. 1884. The Silurian Gastropoda and Pteropoda of Gotland. Kongliga Svenska Vetenskaps-Akademiens Handlingasr 19:1-250 [P. Wagner/P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 3977: authorized by Pete Wagner, entered by Pete Wagner on 12.08.1999, edited by Björn Kröger

Creative Commons license: CC BY (attribution)