Vollen Fm., Oslo region, Norway (Ordovician of Norway)

Where: Norway (60.0° N, 11.0° E: paleocoordinates 31.6° S, 9.4° W)

• local area-level geographic resolution

When: Vollen Formation, Late/Upper Llandeilo (461.1 - 458.4 Ma)

• formation-level stratigraphic resolution

Environment/lithology: deep subtidal shelf; lithified, calcareous limestone and shale

• Rhythmically interbedded limestone interbedded with calcareous shales and nodular limestone

Primary reference: J. F. Bockelie. 1984. The Diploporita of the Oslo region, Norway. Palaeontology 27(1):1-68 [A. Miller/P. Novack-Gottshall/B. Kröger]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 3250: authorized by Arnold Miller, entered by Phil Novack-Gottshall on 27.07.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

• Several systematic articles on various groups (trilobites, bryozoans, and cystoids), plus additional papers in the journal Norsk Geologisk Tidsskrift on the Middle Ordovician of the Oslo-Asker region
Show authors, comments, and common names
 Sphaeronitida - Sphaeronitidae
Haplosphaeronis sp.
Haplosphaeronis sp. Jaekel 1926
 Rhombifera - Echinosphaeritidae
Echinosphaerites sp.
Echinosphaerites sp. Wahlenberg 1818
Eocrinoidea
 Trachelocrinida - Heckerocrinidae
"Bockia sp." = Heckerocrinus
"Bockia sp." = Heckerocrinus Doweld 2012
Strophomenata
 Strophomenida - Grorudiidae
Grorudia sp., Grorudia sp.
Grorudia sp. Spjeldnaes 1957
Grorudia sp. Spjeldnaes 1957
originally entered as "Alwynella sp."
 Strophomenida - Christianiidae
Christiania sp.
Christiania sp. Hall and Clarke 1892
 Strophomenida - Leptellinidae
Leptelloidea sp.
Leptelloidea sp. Jones 1928
 Strophomenida - Furcitellidae
? Oepikina sp.
? Oepikina sp. Salmon 1942
originally entered as "Oepikina? sp."
Cephalopoda
 Endocerida - Endoceratidae
Endoceras sp., ? Vaginoceras sp.
Endoceras sp. Hall 1847
? Vaginoceras sp. Hyatt 1884
originally entered as "Vaginoceras? sp."
 Tarphycerida - Trocholitidae
Discoceras sp.
Discoceras sp. Barrande 1867
 Lituitida - Lituitidae
Ancistroceras sp., Angelinoceras sp., Trilacinoceras sp., Lituites sp.
Ancistroceras sp. Remele 1881
Angelinoceras sp. Hyatt 1894
Trilacinoceras sp. Sweet 1958
Lituites sp. Bertrand 1763
Gastropoda
 Bellerophontida - Sinuitidae
Sinuites sp.
Sinuites sp. Koken 1896 snail
 Bellerophontida - Bucaniidae
? Bucania sp.
? Bucania sp. Hall 1847 snail
originally entered as "Bucania? sp."
 Bellerophontida - Tropidodiscidae
Tropidodiscus sp.
Tropidodiscus sp. Meek and Worthen 1866 snail
 Euomphalina - Lesueurillidae
Pararaphistoma sp.
Pararaphistoma sp. Vostokova 1955 snail
Bivalvia
 Cyrtodontida - Cyrtodontidae
Cyrtodontula sp.
Cyrtodontula sp. Tomlin 1931 clam
 Solenida - Konduriidae
Palaeosolen sp.
Palaeosolen sp. Hall 1845 clam
Ostracoda
 Beyrichicopida - Ctenonotellidae
Steusloffia sp.
Steusloffia sp. Ulrich and Bassler 1908 ostracod
 Palaeocopida -
Ullerella sp., Piretopsis sp.
Ullerella sp. ostracod
Piretopsis sp. ostracod
Trilobita
 Corynexochida - Styginidae
Raymondaspis sp., Bronteopsis sp.
Raymondaspis sp. Pribyl 1948 trilobite
Bronteopsis sp. Nicholson and Etheridge 1879 trilobite
 Proetida - Telephinidae
Telephina sp.
Telephina sp. Marek 1952 trilobite
 Phacopida - Pterygometopidae
Bolbochasmops sp., Scopelochasmops sp., Chasmops sp.
Bolbochasmops sp. McNamara 1980 trilobite
Scopelochasmops sp. McNamara 1980 trilobite
Chasmops sp. M'Coy 1849 trilobite
 Phacopida - Encrinuridae
Atractopyge sp.
Atractopyge sp. Hawle and Corda 1847 trilobite
 Phacopida - Cheiruridae
Hemisphaerocoryphe sp., Nieszkowskia sp., Cyrtometopella sp.
Hemisphaerocoryphe sp. Reed 1896 trilobite
Nieszkowskia sp. Schmidt 1881 trilobite
Cyrtometopella sp. Nikolaisen 1961 trilobite
 Trinucleida - Trinucleidae
Botrioides sp., Reedolithus sp.
Botrioides sp. Stetson 1927 trilobite
Reedolithus sp. Bancroft 1929 trilobite
 Asaphida - Asaphidae
Pseudoasaphus sp., ? Ogygiocaris sp., Ogmasaphus sp., Asaphus sp., Pseudobasilicus sp.
Pseudoasaphus sp. Schmidt 1901 trilobite
? Ogygiocaris sp. Angelin 1854 trilobite
originally entered as "Ogygiocaris? sp."
Ogmasaphus sp. Jaanusson 1953 trilobite
Asaphus sp. Brongniart 1822 trilobite
Pseudobasilicus sp. Reed 1930 trilobite
 Asaphida - Remopleurididae
Sculptella sp., Robergia sp., Remopleurides sp., "Sculptaspis sp." = Brachypleura
Sculptella sp. Nikolaisen 1952 trilobite
Robergia sp. Wiman 1905 trilobite
Remopleurides sp. Portlock 1843 trilobite
"Sculptaspis sp." = Brachypleura Angelin 1854 trilobite