Umivik, Svartenhuk Peninsula (Cretaceous of Greenland)

Where: Greenland (71.6° N, 54.1° W: paleocoordinates 59.4° N, 15.1° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Coniacian (89.8 - 86.3 Ma)

• ammonites indicate a Lower Coniacian, Coniacian? age

• group of beds-level stratigraphic resolution

Environment/lithology: offshore; lithified, gray shale

• 'along the southern margin of the delta of the Usuit-kugssuat river the deposits consist of thinly laminated, bituminous, dark-grey shales'

Size class: macrofossils

Preservation: mold/impression

Collection methods: 'Most of the material described in this paper was collected during the Nugssuaq Expeditions in 1938-1939 and during the current geological mapping of Svartenhuk and Nugssuaq under the auspices of the Geological Survey of Greenland. Both were carried out under the leadership of Professor A. Rosenkrantz.' The author himself joined two of the expeditions.

•Museum repositories: MMH

Primary reference: T. Birkelund. 1965. Ammonites from the Upper Cretaceous of West Greenland. Meddelelser om Grønland 179(7):1-192 [M. Aberhan/S. Nurnberg]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 70195: authorized by Martin Aberhan, entered by Sabine Nürnberg on 20.03.2007, edited by Matthew Clapham

Creative Commons license: CC BY (attribution)

Taxonomic list

• Focus on ammonites.
Cephalopoda
 Ammonitida - Scaphitidae
Scaphites (Scaphites) preventicosus, "Scaphites (Scaphites) mariasensis" = Scaphites mariasensis
Scaphites (Scaphites) preventicosus ammonite
S. (S.) preventicosus svartenhukensis n. ssp., incl. 60 fragments
"Scaphites (Scaphites) mariasensis" = Scaphites mariasensis Cobban 1851 ammonite
S. (S.) mariasensis umivikensis n. ssp., incl. 40 fragments
 Ammonitida - Binneyitidae
Borissjakoceras rosenkrantzi Birkelund 1965 ammonite
listed as Borissjakoceras rosenkrantzi
Insecta
 Dicondylia - Susumaniidae
Coniphasma rosenkrantzi n. gen. n. sp.
Coniphasma rosenkrantzi n. gen. n. sp. Birket-Smith 1981 winged insect
MMC 13894 (GGU 6697-3)