Bavnodde Greensand Formation, Risenholm, Bornholm (Cretaceous of Denmark)

Where: Denmark (55.1° N, 14.8° E: paleocoordinates 45.1° N, 14.5° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Bavnodde Greensand Formation, Early/Lower Santonian (85.8 - 83.5 Ma)

• 'the Bavnodde Greensand Formation exposed at Risenholm is basal Santonian'

• group of beds-level stratigraphic resolution

Environment/lithology: shoreface; lithified, sandy marl

• classification based on high bioturbation
• 'the formation consists of poorly sorted, calcareous, glauconitic, fine-grained, silty quartz sand. Several layers of nodular greensand, quartzitic beds, and marly beds are included in the greensand, which is strongly bioturbated. In the Nyker fault block the formation consists of greensands and marls'; it is noted that most specimens were derived from (sandy) marls

Size class: macrofossils

Preservation: mold/impression

Collection methods: Museum repositories: MGUH, MMH and GM

Primary reference: T. Birkelund. 1957. Upper Cretaceous belemnites from Denmark. Biologiske Skrifter. Det Kongelige Danske Viden-skabernes Selskab 9(1):1-69 [M. Aberhan/S. Nurnberg/P. Wagner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 70061: authorized by Martin Aberhan, entered by Sabine Nürnberg on 16.03.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

• fragments are not included in abundace data of belemnites
Bivalvia
 Myalinida - Inoceramidae
Cephalopoda
 Belemnitida - Belemnitellidae
 Ammonitida - Scaphitidae
Scaphites (Scaphites) kieslingswaldensis1 Langenhan and Grundey 1891 ammonite
S. (S.) kieslingswaldensis fischeri
 Ammonitida - Baculitidae
Baculites cf. fuchsi1 Redtenbacher 1873 ammonite
 Ammonoidea - Collignoniceratidae
Protexanites (Protexanites) sp.1 Matsumoto 1955 ammonite