Composit List, Asker (Ordovician to of Norway)

Where: Norway (60.0° N, 11.0° E: paleocoordinates 31.6° S, 9.4° W)

• local area-level geographic resolution

When: Dicranograptus clingani graptolite zone, Nakholmen Formation, Longvillian to Longvillian (457.5 - 452.0 Ma)

• Was Soudleyan - Marshbrookian, but D. clingani restricts that.

• formation-level stratigraphic resolution

Environment/lithology: offshore shelf; lithified, black, silty lime mudstone and limestone

• Black, dark silty, calcareous mudstone/shale with occasional horizons of nodular and planar grey limestone; very deep, distal shelf, offshore

Size classes: macrofossils, mesofossils

Preservation: cast

Primary reference: D. A. T. Harper, A. W. Owen, and S. H. Williams. 1984. The Middle Ordovician of the Oslo Region, Norway, 34. The Type Nakholmen Formation (Upper Caradoc), Oslo, and its faunal significance. Norsk Geologisk Tidsskrift (Oslo) 64(4):293-312 [A. Miller/P. Novack-Gottshall/A. Clement]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 2763: authorized by Arnold Miller, entered by Phil Novack-Gottshall on 18.07.1999, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

Trilobita
 Asaphida - Remopleurididae
Remopleurides sp. Portlock 1843 trilobite
 Trinucleida - Raphiophoridae
Lonchodomas sp. Angelin 1854 trilobite
 Phacopida - Pterygometopidae
Toxochasmops sp. McNamara 1979 trilobite
 Phacopida - Encrinuridae
Atractopyge sp. Hawle and Corda 1847 trilobite
 Phacopida - Calymenidae
Flexicalymene sp. Shirley 1936 trilobite
Prionocheilus sp. Rouault 1847 trilobite
 Corynexochida - Panderiidae
Panderia sp. Volborth 1863 trilobite
 Corynexochida - Illaenidae
Stenopareia sp. Holm 1886 trilobite
 Proetida - Aulacopleuridae
? Harpidella sp. M'Coy 1849 trilobite
originally entered as "Harpidella? sp."
 Lichida - Lichidae
Platylichas sp. Gürich 1901 trilobite
Strophomenata
 Strophomenida - Leptestiidae
Leptestiina indentata Spjeldnaes 1957
 Strophomenida - Sowerbyellidae
Sowerbyella sp. Jones 1928
 Strophomenida - Rafinesquinidae
Kjaerina lepta Spjeldnaes 1957
originally entered as "Kjaerina" sp."
Kjerulfina foliovalve Spjeldnaes 1957
originally entered as "Kjerulfina" sp."; [Kjerulfina follovalve]
"Leptaena strandi" = Leptaena (Leptaena) strandi Spjeldnaes 1957
Rhynchonellata
 Protorthida - Skenidiidae
Skenidioides sp. Schuchert and Cooper 1931
 Pentamerida - Porambonitidae
"Porambonltes (Equirostra) sp." = Porambonites (Equirostra)
"Porambonltes (Equirostra) sp." = Porambonites (Equirostra)
 Orthida - Harknessellidae
Horderleyella cf. kegelensis Alichova 1953
"Horderleyella" cf. kegelensis oanduensls
 Orthida - Platystrophiidae
 Orthida - Glyptorthidae
Glyptorthis sp. Foerste 1914
 Orthida - Productorthidae
Nicolella cf. actoniae de Sowerby and Murchison 1839
Bivalvia
 Solemyida - Ctenodontidae
Ctenodonta sp. Salter 1852 clam
 Myalinida - Ambonychiidae
Cleionychia sp. Ulrich 1892 clam
 Cyrtodontida - Cyrtodontidae
Cyrtodontula sp. Tomlin 1931 clam
Gastropoda
 Euomphalina - Platyceratidae
Cyclonema sp. Hall 1852 snail
 Bellerophontida - Sinuitidae
? Sinuites sp. Koken 1896 snail
originally entered as "Sinuites? sp."
Cephalopoda
 Dissidocerida - Geisonoceratidae
? Protokionoceras sp. Grabau and Shimer 1910
originally entered as "Protokionoceras? sp."
 Orthocerida - Kionoceratidae
? Polygrammoceras sp. Foerste 1927
originally entered as "Polygrammoceras? sp."