Toyen Fm., Hagastrand Mbr., Oslo region, Norway (Ordovician of Norway)

Where: Norway (60.0° N, 11.0° E: paleocoordinates 36.3° S, 12.5° W)

• local area-level geographic resolution

When: Hagastrand Member (Toyen Formation), Arenig (478.6 - 466.0 Ma)

• member-level stratigraphic resolution

Environment/lithology: offshore shelf; lithified, glauconitic, gray, green shale and limestone

• Grey-green shale with limestone intercalations and minor glauconite

Primary reference: B. D. Erdtmann. 1965. Outline stratigraphy of graptolite-bearing 3B (Lower Ordovician) strata in the Oslo region, Norway. Norsk Geologiske Tidsskrift 45:481-547 [A. Miller/P. Novack-Gottshall/A. Clement]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 3184: authorized by Arnold Miller, entered by Phil Novack-Gottshall on 27.07.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

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Pterobranchia
 Graptoloidea - Dichograptidae
Clonograptus sp., Didymograptus sp., Dichograptus sp.
Clonograptus sp. Nicholson 1873 graptolite
Didymograptus sp. McCoy 1851 graptolite
Dichograptus sp. graptolite
 Graptoloidea - Phyllograptidae
Phyllograptus sp., Tetragraptus sp.
Phyllograptus sp. Hall 1858 graptolite
Tetragraptus sp. Salter 1863 graptolite
 Graptoloidea - Anisograptidae
Adelograptus sp.
Adelograptus sp. Bulman 1941 graptolite
Trilobita
 Asaphida - Asaphidae
Megistaspis sp., "Niobella sp." = Niobe (Niobella)
Megistaspis sp. Jaanusson 1956 trilobite
"Niobella sp." = Niobe (Niobella) Reed 1931 trilobite
 Asaphida - Cyclopygidae
Cyclopyge sp.
Cyclopyge sp. Hawle and Corda 1847 trilobite
Malacostraca
 Archaeostraca - Caryocarididae
Caryocaris sp.
Caryocaris sp. Salter 1863
originally entered as "Cariocaris sp."