Arnager Limestone Formation, Stampe A area, Bornholm (Cretaceous of Denmark)

Where: Denmark (55.1° N, 14.7° E: paleocoordinates 45.1° N, 13.9° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Arnager Limestone Formation, Middle Coniacian (89.3 - 85.8 Ma)

• 'Gry (1960) estimated the thickness of the formation to be about 12-20 m... at the top part of the formation at Stampe A is lower Middle Coniacian on inocermaid bivalve evidence'

• group of beds-level stratigraphic resolution

Environment/lithology: deep subtidal shelf; lithified, glauconitic marl

• 'Noe-Nygaard and Surlyk (1985) showed that deposition of the formation at Arnagar took place in a complex of low mud mounds, and they suggested that the mounds were caused by the baffling effect of dense growth of siliceous sponges and sponge spicule mats.'
• 'at the brook Stampe A the formation is developed as glauconitic marl and sandy limestone.' the inoceramids and belemnites where derived from the glauconitic marl (loc. 5)

Size class: macrofossils

Preservation: mold/impression

Collection methods: Museum repositories: MGUH and GM

Primary reference: K.-A. Tröger and W. K. Christensen. 1991. Upper Cretaceous (Cenomanian-Santonian) inoceramid bivalve faunas from the island of Bornholm, Denmark. Geological Survey of Denmark, DGU Series A (28)1-47 [M. Aberhan/S. Nurnberg/S. Nurnberg]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 70003: authorized by Martin Aberhan, entered by Sabine Nürnberg on 14.03.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

• Focus on inoceramids.
Bivalvia
 Myalinida - Inoceramidae
Cephalopoda
 Belemnoidea -
Belemnitida indet. Zittel 1895 belemnite