Holorhynchus association, Langoyen Fm. (Ordovician of Norway)
Where: Oslo-Asker Dist., Norway (59.9° N, 10.6° E: paleocoordinates 27.6° S, 8.9° W)
• coordinate based on political unit
When: Langoyen Formation, Hirnantian (445.2 - 443.4 Ma)
• "Late Ashgillian (Ord) (Hirnantian)"
Environment/lithology: offshore; siltstone
• "variable facies- silty mudstones. shallow shelf, prob. somewhat shoreward of Hirnantian assoc."
Size class: macrofossils
Primary reference: P. J. Brenchley and L. R. M. Cocks. 1982. Ecological associations in a regressive sequence: the latest Ordovician of the Oslo-Asker district, Norway. Palaeontology 25(4):783-815 [S. Finnegan/S. Finnegan/B. Kröger]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 438: authorized by Arnold Miller, entered by Mike Sommers on 08.12.1998
Creative Commons license: CC BY (attribution)
Taxonomic list
• "Brenchley and Cocks, 1982"
Show authors, comments, and common names
unclassified | |
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Chlorophyceae | |
Receptaculites sp. Defrance 1827 | |
Cephalopoda | |
Discoceras sp. Barrande 1867 | |
Gastropoda | |
"Pleurotomariacea indet." = Pleurotomarioidea
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Bivalvia | |
"Modiomorphoida indet." = Modiomorphida
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"Nuculoida indet." = Nuculida
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Similodonta sp. Soot-Ryen 1964 clam | |
Strophomenata | |
Eoplectodonta sp. Kozlowski 1929 | |
Leangella sp. Opik 1933 | |
Sericoidea sp. Lindström 1953 | |
Katastrophomena sp. Cocks 1968 | |
Leptaena sp. Dalman 1828 | |
Rhynchonellata | |
Nicolella sp. Reed 1917 | |
Hesperorthis sp. Schuchert and Cooper 1931
Dolerorthis sp. Schuchert and Cooper 1931 | |
Paucicrura sp. Cooper 1956
Onniella sp. Bancroft 1928 | |
Eospirigerina sp. Schuchert and Cooper 1930 | |
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Holorhynchus sp. Kiaer 1902 | |
Bryozoa | |
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Stenolaemata | |
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Crinoidea | |
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