Where: Denmark (56.6° N, 10.0° E: paleocoordinates 45.2° N, 7.0° E)

• coordinate stated in text

• small collection-level geographic resolution

When: Fjerritslev Formation, Hettangian (201.3 - 199.3 Ma)

• meters are below mean sea level

• group of beds-level stratigraphic resolution

Environment/lithology: coastal; mudstone

Size class: macrofossils

Preservation: cast, mold/impression, original aragonite, replaced with pyrite

Collection methods: core,

• Gassum 1 well was drilled in 1948-1951

Primary reference: G. K. Pedersen. 1986. Changes in the bivalve assemblage of an early Jurassic mudstone sequence (the Fjerritslev formation in the Gassum 1 well, Denmark). Palaeogeography, Palaeoclimatology, Palaeoecology 53:139-168 [M. Aberhan/T. Schossleitner]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 142009: authorized by Martin Aberhan, entered by Thomas Schossleitner on 04.04.2013

Creative Commons license: CC BY (attribution)