Hornsund (Triassic of Svalbard and Jan Mayen)

Where: Svalbard and Jan Mayen (77.0° N, 16.2° E: paleocoordinates 40.8° N, 11.2° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Urnetoppen Member (Vardebukta Formation), Dienerian (250.5 - 251.2 Ma)

• Brevassfjellet Myalina Bed, upper part of the Urnetoppen Member (data from Blazejowski, 2004)

• bed-level stratigraphic resolution

Environment/lithology: transition zone or lower shoreface; lithified, fine-grained, ferruginous conglomerate

• offshore sand bars

Size classes: macrofossils, mesofossils, microfossils

Collected by Hoel, Røvig in 1917

Primary reference: E. A. Stensiö. 1918. Notes on some fish remains collected at Hornsund by the Norwegian Spitzbergen Expedition in 1917. Norsk Geologisk Tidsskrift 5:75-78 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 153411: authorized by Matthew Clapham, entered by Matthew Clapham on 14.12.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Osteichthyes
 Palaeonisciformes - Palaeoniscidae
? Gyrolepis sp. Agassiz 1833
 Ptycholepiformes - Ptycholepididae
"Acrolepis ? arctica" = Boreosomus arcticus
"Acrolepis ? arctica" = Boreosomus arcticus Woodward 1912 ray-finned fish
Chondrichthyes
 Hybodontiformes - Hybodontidae
Hybodus sp. Agassiz 1834 elasmobranch
 Hybodontiformes - Acrodontidae
Acrodus ? spitzbergensis Hulke 1873 elasmobranch