Segerstad Limestone Assemblage, Siljan, Sweden (Ordovician of Sweden)

Where: Sweden (61.0° N, 15.0° E: paleocoordinates 33.0° S, 7.9° W)

• local area-level geographic resolution

When: Segerstad Limestone Formation, Late/Upper Llanvirn (463.5 - 460.9 Ma)

• formation-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified, calcareous lime mudstone and sandstone

• Lower portion is red calcilutite; upper is red, variegated calcarenite

Primary reference: V. Jaanusson. 1963. Lower and Middle Viruan (Middle Ordovician) of the Siljan district. Bulletin of Geological Institutions of the University of Uppsala 42(3):1-40 [A. Miller/P. Novack-Gottshall/A. Clement]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 2942: authorized by Arnold Miller, entered by Phil Novack-Gottshall on 22.07.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Cephalopoda
 Lituitida - Sinoceratidae
Rhynchorthoceras sp.
Rhynchorthoceras sp. Remelé 1882
 Lituitida - Lituitidae
Ancistroceras sp., ? Lituites sp., Angelinoceras sp.
Ancistroceras sp. Remele 1881
? Lituites sp. Bertrand 1763
originally entered as "Lituites? sp."
Angelinoceras sp. Hyatt 1894
 Dissidocerida - Geisonoceratidae
? Geisonoceras sp.
? Geisonoceras sp. Hyatt 1884
originally entered as "Geisonoceras? sp."
 Orthocerida - Baltoceratidae
Cochlioceras sp.
Cochlioceras sp. Eichwald 1860
 Orthocerida - Kionoceratidae
? Kionoceras sp.
? Kionoceras sp. Hyatt 1884
originally entered as "Kionoceras? sp."
 Orthocerida - Orthoceratidae
? Orthoceras sp.
? Orthoceras sp. Breynius 1832
originally entered as "Orthoceras? sp."
 Endocerida - Endoceratidae
? Endoceras sp., ? Nanno sp., ? Suecoceras sp.
? Endoceras sp. Hall 1847
originally entered as "Endoceras? sp."
? Nanno sp. Clarke 1894
originally entered as "Nanno? sp."
? Suecoceras sp. Holm 1896
originally entered as "Suecoceras? sp."
Hyolitha
 Hyolithida - Hyolithidae
Hyolithes sp.
Hyolithes sp. d'Eichwald 1840
Strophomenata
 Strophomenida - Leptestiidae
? Leptestia sp.
? Leptestia sp. Bekker 1922
originally entered as "Leptestia? sp."
 Strophomenida - Christianiidae
Christiania sp.
Christiania sp. Hall and Clarke 1892
Artiopoda
 Agnostida - Metagnostidae
Trinodus sp.
Trinodus sp. M'Coy 1846
Trilobita
 Asaphida - Asaphidae
Asaphus sp., Pseudoasaphus sp.
Asaphus sp. Brongniart 1822 trilobite
Pseudoasaphus sp. Schmidt 1901 trilobite
 Trinucleida - Raphiophoridae
Cnemidopyge sp.
Cnemidopyge sp. Whittard 1955 trilobite
 Corynexochida - Styginidae
Bronteopsis sp.
Bronteopsis sp. Nicholson and Etheridge 1879 trilobite
 Corynexochida - Illaenidae
Illaenus sp.
Illaenus sp. Dalman 1827 trilobite
 Phacopida - Cheiruridae
Paraceraurus sp.
Paraceraurus sp. Männil 1958 trilobite
Ostracoda
 Hollinocopida - Tvaerenellidae
Euprimites sp.
Euprimites sp. Hessland 1949 ostracod
 Hollinocopida - Eurychilinidae
Laccochilina sp.
Laccochilina sp. Hessland 1949 ostracod