Frognøya, Sørbakken Fm: Pusgillian - Rawtheyan, Norway

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Trilobita - Phacopida - Encrinuridae
Atractopyge sp. Hawle and Corda 1847
Owen 1981
Cybeloides (Paracybeloides) sp. Hupe 1955
Owen 1981
Erratencrinurus kiaeri Owen 1981
Owen 1981
Erratencrinurus (Celtencrinurus) kiaeri
Trilobita - Phacopida - Cheiruridae
Holotrachelus punctillosus (Törnquist 1884)
Owen 1981
Homalonotus punctillosus
Sphaerexochus sp. Beyrich 1845
Owen 1981
Trilobita - Phacopida - Pterygometopidae
Calyptaulax aff. norvegicus Stormer 1945
Owen 1981
Calyptaulax norvegicus Stormer 1945
Owen 1978
Chasmops sp. M'Coy 1849
Owen 1978
Trilobita - Phacopida - Calymenidae
Flexicalymene trinucleina Tullberg 1882
Owen 1978
Trilobita - Asaphida - Asaphidae
Isotelus sp. Dekay 1824
Owen 1978
Isotelus frognoensis Owen 1981
Owen 1981
Trilobita - Asaphida - Remopleurididae
Remopleurides aff. dalecarlicus
Owen 1981
Remopleurides aff. emarginatus Törnquist 1884
Owen 1978
Trilobita - Trinucleida - Trinucleidae
Tretaspis sp. M'Coy 1849
Owen 1978
Tretaspis anderssoni Stormer 1945
Owen 1980
Tretaspis hisingeri Owen 1980
Owen 1980
Tretaspis seticornis (Hisinger 1840)
Owen 1978
recombined as Trinucleus seticornis
Tretaspis seticornis anderssoni
Trilobita - Corynexochida - Illaenidae
Illaenus (Parillaenus) roemeri (Murchison 1839)
Bruton and Owen 1988
recombined as Parillaenus roemeri
Trilobita - Corynexochida - Styginidae
Stygina latifrons (Portlock 1843)
Owen 1981
Stygina latifrons extensa
Stygina minor Skjeseth 1955
Owen 1981
Stygina aff. minor Skjeseth 1955
Owen 1978
Trilobita - Odontopleurida - Odontopleuridae
Primaspis evoluta (Törnquist 1884)
Owen 1978
original and current combination Acidaspis evoluta
Primaspis bucculenta McNamara 1979
Owen 1981
Primaspis (Primaspis) bucculenta
Cephalopoda - Barrandeocerida - Barrandeoceratidae
Centrocyrtoceras frognoyense Strand 1934
Strand 1934
Cephalopoda - Endocerida - Endoceratidae
Cyclendoceras cf. norvegicum Strand 1934
Strand 1934
Cephalopoda - Tarphycerida - Trocholitidae
Discoceras roemeri Strand 1934
Strand 1934
Cephalopoda - Discosorida - Cyrtogomphoceratidae
Kiaeroceras frognoyense Strand 1934
Strand 1934
Protophragmoceras tyriense Strand 1934
Strand 1934
recombined as Strandoceras tyriense
Cephalopoda - Oncocerida - Diestoceratidae
Lyckholmoceras norvegiae Strand 1934
Strand 1934
Lyckholmoceras constrictum Strand 1934
Strand 1934
Danoceras sp. Troedsson 1926
Strand 1934
Cephalopoda - Oncocerida - Jovellaniidae
Mixosiphonoceras norvegicum Strand 1934
Strand 1934
Cephalopoda - Dissidocerida - Geisonoceratidae
Geisonoceras heintzi Strand 1934
Strand 1934
Cephalopoda - Lituitida - Sinoceratidae
Tyrioceras kjerulfi (Strand 1934)
Strand 1934
original and current combination Tyrioceras kjaerulfi
Cephalopoda - Orthocerida - Sactoceratidae
Sactoceras tyriense Strand 1934
Strand 1934
Cephalopoda - Orthocerida - Tripteroceratidae
Hadoceras cf. septocurvatum Strand 1934
Strand 1934
Cephalopoda - Orthocerida - Proteoceratidae
Ephippiorthoceras frognoyense (Strand 1934)
Strand 1934
original and current combination Ephippiorthoceras frognoeyense
Geisonoceras heroyense Strand 1934
Strand 1934
recombined as Isorthoceras heroyense
Cephalopoda - Orthocerida - Orthoceratidae
Orthoceras sp. Breynius 1832
Strand 1934
Gastropoda - Bellerophontida - Sinuitidae
Sinuites usitatus (Isakar 1991)
Ebbestad and Yochelson 2000 3 specimens
original and current combination Sinuites (Sinuites) usitatus
Bivalvia - Myalinida - Ambonychiidae
Cleionychia sp. Ulrich 1892
Toni 1975
Cleionychia cf. primitiva (Isberg 1934)
Toni 1975
Bivalvia - Cyrtodontida - Cyrtodontidae
Cyrtodontula ventricosa (Hall 1847)
Toni 1975
Sphaeronitidae
Archaegocystis cf. granulata Paul 1973
1 specimen
see common names

Geography
Country:Norway State/province:Ringerike
Coordinates: 60.0° North, 10.2° East (view map)
Paleocoordinates:30.3° South, 9.6° West
Basis of coordinate:estimated from map
Time
Period:Ordovician Epoch:Late/Upper Ordovician
Stage:Katian 10 m.y. bin:Ordovician 5
Key time interval:Pusgillian - Rawtheyan
Age range of interval:449.60000 - 445.20000 m.y. ago
Stratigraphy
Formation:Sørbakken
Stratigraphy comments: "Trinucleus limestone (4c)", in Strand (1934)
"Isotelus limestone (4d)", in Strand (1934)
"Isotelus Beds"(4d)", in Toni (1975)
Lithology and environment
Primary lithology: "limestone"
Environment:marine indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils,mesofossils
Collection methods and comments
Collection excludes:some genera
Reason for describing collection:taxonomic analysis
Metadata
Database number:163026
Authorizer:B. Kröger Enterer:B. Kröger
Modifier:B. Kröger
Created:2014-10-09 08:28:12 Last modified:2014-12-11 12:01:31
Access level:the public Released:2014-10-09 08:28:12
Creative Commons license:CC BY
Reference information

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

Secondary references:

52591 D. L. Bruton and A. W. Owen. 1988. Norwegian Upper Ordovician illaenid trilobites. Norsk Geologisk Tidsskrift 68:241-258 [B. Kröger/B. Kröger]
15878 J.O.R. Ebbestad and E. L. Yochelson. 2000. Isostrophic molluscs (Tergomya and Gastropoda) from the Upper Ordovician of Norway. Norsk Geologisk Tidsskrift 80(2):187-202 [P. Wagner/P. Wagner]
53245 A. W. Owen. 1978. The upper Ordovician succession at Norderhov and on Frognøya in Ringerike, Norway. Norsk Geologisk Tidsskrift 58:245-258 [B. Kröger/B. Kröger]
53755 A. W. Owen. 1980. The trilobite Tretaspis from the upper Ordovician of the Oslo region, Norway. Palaeontology 23(4):715-747 [B. Kröger/B. Kröger]
53153 A. W. Owen. 1981. The Ashgill Trilobites of the Oslo Region, Norway. Palaeontographica Abteilung A 175:1-88 [B. Kröger/B. Kröger]
53580 T. Strand. 1934. The Upper Ordovician Cephalopods of the Oslo Area. Norsk geologiske Tidsskrift 14:1-117 [B. Kröger/B. Kröger/M. Uhen]
6344 R. T. Toni. 1975. Upper Ordovician bivalves from the Oslo Region, Norway. Norsk Geologisk Tidsskrift 55(2):135-156 [A. Miller/R. Krause/P. Wagner]