Venstop Formation Assemblage, Oslo and Ringerike, Norway (Ordovician of Norway)

Where: Norway (60.0° N, 11.0° E: paleocoordinates 29.2° S, 8.9° W)

• local area-level geographic resolution

When: Venstop Formation, Pusgillian (449.5 - 449.2 Ma)

• formation-level stratigraphic resolution

Environment/lithology: basinal (); lithified shale and limestone

• Dark, locally graptolitic shale with scattered limestone concretions

Primary reference: A. I. Miller. 1993. Unpublished notes on Norwegian Ordovician fossil occurrences compiled from various resources, primarily from the series of papers on taxa of the Middle Ordovician on the Oslo-Asker District, published in Norsk Geologisk Tidsskrift. [A. Miller/P. Novack-Gottshall/M. Uhen]more details

PaleoDB collection 2949: authorized by Arnold Miller, entered by Phil Novack-Gottshall on 22.07.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

• Compiled from several published references; not listed in Arnold I. Miller's notebooks
Show authors, comments, and common names
Trilobita
 Phacopida - Encrinuridae
Cybeloides sp.
Cybeloides sp. Slocum 1913 trilobite
 Phacopida - Pterygometopidae
Calyptaulax sp., Toxochasmops sp.
Calyptaulax sp. Cooper 1930 trilobite
Toxochasmops sp. McNamara 1979 trilobite
 Phacopida - Calymenidae
Flexicalymene sp., Calymene sp.
Flexicalymene sp. Shirley 1936 trilobite
Calymene sp. Brongniart 1822 trilobite
 Olenida - Olenidae
Triarthrus sp.
Triarthrus sp. Green 1832 trilobite
 Proetida - Tropidocoryphidae
Decoroproetus sp.
Decoroproetus sp. Pribyl 1946 trilobite
 Asaphida - Remopleurididae
Remopleurides sp., ? Amphitryon sp.
Remopleurides sp. Portlock 1843 trilobite
? Amphitryon sp. Hawle and Corda 1874 trilobite
originally entered as "Amphitryon? sp."
 Trinucleida - Raphiophoridae
Lonchodomas sp.
Lonchodomas sp. Angelin 1854 trilobite
 Trinucleida - Trinucleidae
Tretaspis sp.
Tretaspis sp. M'Coy 1849 trilobite
 Corynexochida - Illaenidae
Stenopareia sp.
Stenopareia sp. Holm 1886 trilobite
 Odontopleurida - Odontopleuridae
Primaspis sp.
Primaspis sp. Richter and Richter 1917 trilobite
Bivalvia
 Nuculanida - Cucullellidae
Nuculites sp.
Nuculites sp. Conrad 1841 clam
 Solemyida - Ctenodontidae
Tancrediopsis sp.
Tancrediopsis sp. Beushausen 1895 clam
 Cyrtodontida - Cyrtodontidae
Cyrtodontula sp.
Cyrtodontula sp. Tomlin 1931 clam
Rhynchonellata
 Orthida - Dalmanellidae
Dalmanella sp., Onniella sp.
Dalmanella sp. Hall and Clarke 1892
Onniella sp. Bancroft 1928
Strophomenata
 Strophomenida - Aegiromenidae
Sericoidea sp., Chonetoidea sp.
Sericoidea sp. Lindström 1953
Chonetoidea sp. Jones 1928
Lingulata
 Lingulida - Discinidae
Orbiculoidea sp.
Orbiculoidea sp. d'Orbigny 1847
 Acrotretida - Acrotretidae
Hisingerella sp.
Hisingerella sp. Henningsmoen 1948
Pterobranchia
 Graptoloidea - Diplograptidae
Orthograptus sp.
Orthograptus sp. Lapworth 1873 graptolite
 Graptoloidea - Climacograptidae
Climacograptus sp., Pseudoclimacograptus sp.
Climacograptus sp. Hall 1865 climacograptid
Pseudoclimacograptus sp. climacograptid
 Graptoloidea - Dicranograptidae
Dicellograptus sp.
Dicellograptus sp. Hopkinson 1871 graptolite