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 (457.3 - 453.8 Ma)
• bed-level stratigraphic resolution
Environment/lithology: slope; lithified, dolomitic, argillaceous limestone and lithified, calcareous shale
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
Anthozoa | |
| |
unclassified | |
Porifera "spicules" Grant 1836 | |
Deuteropoda | |
Ostracoda indet. Latreille 1802 ostracod | |
Trilobita | |
? Dolichoharpes sp. Whittington 1949 trilobite | |
? Decoroproetus sp. Pribyl 1946 trilobite | |
? Failleana sp. Chatterton and Ludvigson 1976 trilobite | |
Ceraurus sp. Green 1832 trilobite | |
Gastropoda | |
| |
Stenolaemata | |
? Parvohallopora sp.1 Singh 1979 | |
Atactoporella sp.1 Ulrich 1883 | |
Inarticulata | |
Rhynchonellata | |
Scaphorthis perplexa3 Cooper 1956 | |
Glyptorthis assimilis3 Cooper 1956 | |
"Plaesiomys meedsi" = Dinorthis meedsi3
"Plaesiomys meedsi" = Dinorthis meedsi3 Winchell and Schuchert 1892 | |
Paucicrura rogata3 Sardeson 1892 | |
Strophomenata | |
Murinella cf. biconvexa3 Cooper 1956 | |
Christiania subquadrata3 Hall 1883 | |
Eoplectodonta (Eoplectodonta) alternata3 Butts 1942 | |
Glyptambonites musculosus3 Cooper 1956 | |
Bimuria cf. superba3 Ulrich and Cooper 1942 | |
Conodonta | |
Drepanoistodus suberectus Branson and Mehl 1933 conodont | |
Panderodus gracilis Branson and Mehl 1933 conodont
Belodina sp. Ethington 1959 conodont
Belodina compressa Branson and Mehl 1933 conodont
? Pseudobelodina dispansa Glenister 1957 conodont | |
Phragmodus cf. undatus conodont
Pseudooneotodus beckmanni Bischoff and Sannemann 1958 conodont | |
Coelocerodontus trigonius Ethington 1959 conodont | |
unclassified | |
Echinodermata "fragments" Klein 1754 |