Tretaspis association, Husbergoya Shale (Ordovician of Norway)

Where: Oslo-Asker, Norway (60.0° N, 11.0° E: paleocoordinates 30.3° S, 9.1° W)

• local area-level geographic resolution

When: Husbergoya Shale Formation, Rawtheyan (448.8 - 445.2 Ma)

• "Late Ashgill, (late Rautheyan)"

Environment/lithology: offshore; lithified shale and siltstone

• "mudstone. deep shelf- max 100m depth likely. BA5"; Mudstone with silty shale and occasional siltstones

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: paleoecologic analysis

PaleoDB collection 366: authorized by Arnold Miller, entered by Mike Sommers on 20.11.1998, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

• "Brenchley and Cocks, 1982. Ecol. assoc. in a regressive sequence: the latest Ord. of the Oslo-Asker Dist., Norway. Paleontology 25:783-816"
Show authors, comments, and common names
Pterobranchia
 Graptoloidea - Climacograptidae
Climacograptus sp.
Climacograptus sp. Hall 1865 climacograptid
Crinoidea
  -
Crinoidea indet.
Crinoidea indet. Miller 1821 Sea lily
crinoid ossicles
Gastropoda
 Murchisoniina -
Loxonematoidea indet.
Loxonematoidea indet. Koken 1889 snail
loxonomatacean
 Murchisoniina - Eotomariidae
Eotomariidae indet.
Eotomariidae indet. Wenz 1938 snail
 Bellerophontida -
Bellerophontida indet.
Bellerophontida indet. Ulrich and Scofield 1897 snail
bellerophontaceans
 Bellerophontida - Bellerophontidae
Cymbularia sp.
Cymbularia sp. Koken 1896 snail
 Euomphalina - Holopeidae
? Holopea sp.
? Holopea sp. Hall 1847 snail
originally entered as "? Holopea sp."
Bivalvia
 Nuculida - Praenuculidae
? Praenucula sp.
? Praenucula sp. Pfab 1934 clam
originally entered as "? Praenucula sp."
 Nuculanida - Malletiidae
? Palaeoneilo sp.
? Palaeoneilo sp. Hall and Whitfield 1869 clam
originally entered as "? Paleoneilo sp."
Strophomenata
 Strophomenida - Leptestiidae
Leangella sp.
Leangella sp. Opik 1933
 Strophomenida - Sowerbyellidae
Eoplectodonta sp.
Eoplectodonta sp. Kozlowski 1929
 Strophomenida - Strophomenidae
? Strophomena sp.
? Strophomena sp. Rafinesque and De Blainville 1824
originally entered as "? Strophomena sp."
 Strophomenida - Rafinesquinidae
Leptaena sp.
Leptaena sp. Dalman 1828
Rhynchonellata
 Orthida -
Orthida indet.
Orthida indet. Schuchert and Cooper 1932
orthid indet.
 Orthida - Dalmanellidae
Onniella sp.
Onniella sp. Bancroft 1928
 Orthida - Dicoelosiidae
Epitomyonia sp.
Epitomyonia sp. Wright 1968
 Rhynchonellida - Rhynchonellidae
Rhynchonellidae indet.
Rhynchonellidae indet. Gray 1848
? rhychonellid - originally entered as "Rhynchonellida indet."
Lingulata
 Lingulida - Discinidae
Orbiculoidea sp.
Orbiculoidea sp. d'Orbigny 1847
Stenolaemata
 Cryptostomata -
Cryptostomata indet.
Cryptostomata indet. Vine 1884
fenestellid bryozoa
 Trepostomata -
Trepostomata indet.
Trepostomata indet. Ulrich 1882
thin-stick trepostomes
Polychaeta
 Serpulimorpha -
Serpulites sp.
Trilobita
 Asaphida - Asaphidae
Brachyaspis sp.
Brachyaspis sp. Salter 1866 trilobite
 Trinucleida - Raphiophoridae
Lonchodomas sp.
Lonchodomas sp. Angelin 1854 trilobite
 Trinucleida - Trinucleidae
Tretaspis sp.
Tretaspis sp. M'Coy 1849 trilobite
 Trinucleida - Dionididae
Dionide sp.
Dionide sp. Barrande 1847 trilobite
 Lichida - Lichidae
Dicranopeltis sp.
Dicranopeltis sp. Hawle and Corda 1847 trilobite
 Corynexochida - Styginidae
Stygina sp.
Stygina sp. Salter 1853 trilobite
 Phacopida - Pterygometopidae
Toxochasmops sp.
Toxochasmops sp. McNamara 1979 trilobite
 Phacopida - Encrinuridae
Cybeloides sp.
Cybeloides sp. Slocum 1913 trilobite
 Phacopida - Cheiruridae
Sphaerocoryphe sp.
Sphaerocoryphe sp. Angelin 1854 trilobite
 Phacopida - Calymenidae
Calymenidae indet.
Calymenidae indet. Milne-Edwards 1840 trilobite
calymenid
 Odontopleurida - Odontopleuridae
Primaspis sp.
Primaspis sp. Richter and Richter 1917 trilobite