Viborg Formation (Oligocene of Denmark)

Where: Denmark (56.0° N, 9.3° E: paleocoordinates 55.5° N, 5.2° E)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Viborg Formation, Rupelian (33.9 - 28.1 Ma)

• STRATIGRAPHIC RELATIONS: From the Viborg Fm, which is overlain by the Branden Clay Fm (Chattian). AGE: Rupelian. STRATIGRAPHIC POSITION: Collection is a composite for the member in this area.

• formation-level stratigraphic resolution

Environment/lithology: offshore; unlithified claystone

• SPECIFIC LITHOLOGY: Clay. LITHIFICATION: Unlithified, on the basis of figured specimens.

Size classes: macrofossils, mesofossils

Collection methods: surface (float), surface (in situ),

• COLLECTORS: Unknown. REPOSITORY: Geological Museum, the University of Copenhagen.

Primary reference: K. I. Schnetler and E. Palm. 2008. The molluscan fauna of the late Oligocene Branden Clay, Denmark. Palaeontos 15:1-92 [A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 111476: authorized by Austin Hendy, entered by Austin Hendy on 24.06.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Representative for mollusca. Otoliths, shark teeth, serpulids, anthozoa, brachiopods and sea urchins are also present but are not listed. NOMENCLATURE: Authoritative publication, with modern nomenclature, and species-resolution identifications.
Scaphopoda
 Dentaliida - Dentaliidae
Gastropoda
 Sorbeoconcha - Naticidae
Euspira nysti moon snail
 Sorbeoconcha - Ranellidae
Sassia flandrica triton shell
 Neogastropoda - Costellariidae
Orthosurcula regularis Koninck 1837 ribbed mitre
 Neogastropoda - Cancellariidae
 Neogastropoda - Buccinidae
Aquilofusus sp. Kautsky 1925 true whelk
 Neogastropoda - Muricidae
 Neogastropoda - Turridae
 Neogastropoda - Borsoniidae
 Sorbeoconcha - Aporrhaidae
"Drepanocheilus (Arrhoges) speciosus" = Arrhoges
"Drepanocheilus (Arrhoges) speciosus" = Arrhoges snail
Bivalvia
 Pholadida - Corbulidae
 Cardiida - Arcticidae
Arctica islandica Linnaeus 1767 clam
SUBSPECIES: Arctica islandica rotundata