Nakkholmen, Venstøp Fm. (Ordovician to of Norway)

Where: Oslo, Norway (59.9° N, 10.7° E: paleocoordinates 29.7° S, 9.1° W)

• coordinate estimated from map

When: Venstøp Formation, Onnian to Onnian (453.0 - 449.2 Ma)

• "0.85-1.02 m above the base of the Venstøp Shale Formation", Owen (1981)

• formation-level stratigraphic resolution

Environment/lithology: marine; shale

Size classes: macrofossils, mesofossils

Primary reference: A. W. Owen. 1981. The Ashgill Trilobites of the Oslo Region, Norway. Palaeontographica Abteilung A 175:1-88 [B. Kröger/B. Kröger]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 163312: authorized by Björn Kröger, entered by Björn Kröger on 23.10.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

Trilobita
 Olenida - Olenidae
Triarthrus linnarssoni Thorslund 1940 trilobite
 Odontopleurida - Odontopleuridae
Primaspis bucculenta McNamara 1979 trilobite
Primaspis (Primaspis) bucculenta
 Trinucleida - Raphiophoridae
Lonchodomas aff. pennatus Latouche 1884 trilobite
 Trinucleida - Trinucleidae
Tretaspis ceriodes2 Angelin 1854 trilobite
Tretaspis ceriodes angelini
 Asaphida - Remopleurididae
Remopleurides sp. Portlock 1843 trilobite
Remopleurella burmeisteri1 Bancroft 1949 trilobite
Amphitryon sp. Hawle and Corda 1874 trilobite
 Proetida - Tropidocoryphidae
Decoroproetus cf. solenotus Owens 1970 trilobite