Västerhejde's point, Wallacia laevis (Silurian of Sweden)
Where: Gotland, Sweden (57.6° N, 18.2° E: paleocoordinates 21.6° S, 3.0° W)
• coordinate based on political unit
When: Upper Visby Beds Formation, Sheinwoodian (433.4 - 430.5 Ma)
• formation-level stratigraphic resolution
Environment/lithology: deep subtidal ramp; argillaceous lime mudstone
• There are opinions regarding the environment being a shelf and others defending a ramp.
Size class: macrofossils
Primary reference: L. Ramskold and G. D. Edgecombe. 1994. Revision of the Silurian encrinurine trilobite Wallacia Lamont 1978, with species from Gotland and Canada. Paläontologische Zeitschrift 68(1):89-115more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 238663: authorized by Diego Balseiro, entered by Jesús María Dorado on 06.02.2025
Creative Commons license: CC BY (attribution)
Taxonomic list
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Trilobita | |
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