GSC C-78638. Advance Mountain (Ordovician of Canada)

Also known as Advance Mountain

Where: British Columbia, Canada (56.0° N, 123.3° W: paleocoordinates 4.0° N, 63.0° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Belodina compressa conodont zone, Lower Member (Advance Formation), Turinian (460.9 - 449.5 Ma)

• bed-level stratigraphic resolution

Environment/lithology: slope; lithified, dolomitic, argillaceous limestone and lithified, calcareous shale

• environmental interpretation from paper, but this is almost certainly incorrect and no evidence is presented to suggest a slope setting

Size class: macrofossils

Preservation: replaced with silica

Primary reference: B. S. Norford. 1996. Stratigraphy and biostratigraphy of the Advance Formation, a new upper Middle Ordovician unit, northern Rocky Mountains, British Columbia. Geological Survey of Canada Bulletin 491:5-19 [P. Wagner/P. Wagner/P. Wagner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 35426: authorized by Steven Holland, entered by Steven Holland on 12.12.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

Trilobita
 Corynexochida - Styginidae
? Failleana sp. Chatterton and Ludvigson 1976 trilobite
 Phacopida - Cheiruridae
Ceraurus sp. Green 1832 trilobite
 Proetida - Proetidae
? Decoroproetus sp. Pribyl 1946 trilobite
 Harpetida - Harpetidae
? Dolichoharpes sp. Whittington 1949 trilobite
Ostracoda
  -
Ostracoda indet. Latreille 1802 ostracod
Gastropoda
  -
Gastropoda indet.4 Cuvier 1797 snail
Stenolaemata
 Trepostomata - Halloporidae
 Trepostomata - Monticuliporidae
Atactoporella sp.1 Ulrich 1883
Conodonta
 Conodontophorida -
? Pseudobelodina dispansa Glenister 1957 conodont
 Panderodontida - Panderodontidae
Belodina sp. Ethington 1959 conodont
Belodina compressa Branson and Mehl 1933 conodont
Panderodus gracilis Branson and Mehl 1933 conodont
 Prioniodontida -
  - Strachanognathidae
Pseudooneotodus beckmanni Bischoff and Sannemann 1958 conodont
 Protopanderodontida -
Drepanoistodus suberectus Branson and Mehl 1933 conodont
unclassified
  -
Strophomenata
 Strophomenida - Bimuriidae
Bimuria cf. superba3 Ulrich and Cooper 1942
 Strophomenida - Sowerbyellidae
 Strophomenida - Leptestiidae
 Strophomenida - Leptellinidae
 Strophomenida - Christianiidae
 Strophomenida - Strophomenidae
Rhynchonellata
 Rhynchonellida - Rhynchotrematidae
 Orthida - Dalmanellidae
Paucicrura rogata3 Sardeson 1897
 Orthida - Paurorthidae
 Orthida - Glyptorthidae
Glyptorthis assimilis3 Cooper 1956
 Orthida - Plaesiomyidae
"Plaesiomys meedsi" = Dinorthis meedsi3
"Plaesiomys meedsi" = Dinorthis meedsi3 Winchell and Schuchert 1892
 Orthida - Giraldiellidae
Scaphorthis perplexa3 Cooper 1956
Inarticulata
  -
Anthozoa
 Stauriida - Streptelasmatidae
 Hyolithelminthida -
unclassified
  -