Where: Québec, Canada (49.5° N, 63.0° W: paleocoordinates 23.2° S, 38.1° W)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Paraorthograptus pacificus graptolite zone, Grindstone Member (Vaureal Formation), Richmondian (449.6 - 445.5 Ma)
• Graptolite zone given, as these are conodonts! (Not that you find them together that often...). Member 1 = Grindstone.
• member-level stratigraphic resolution
Environment/lithology: marine; calcareous shale and limestone
Size class: microfossils
Collection methods: chemical,
Primary reference: A. D. McCracken and C. R. Barnes. 1981. Conodont biostratigraphy across the Ordovician-Silurian boundary, Ellis Bay Formation, Anticosti Island, Québec. In P. J. Lespérance (ed.), Field meeting, Anticosti-Gaspé, Québec, 1981: IUGS Subcommssion on Silurian Stratigraphy, Ordovician-Silurian Boundary Working Group, Stratigraphy and Paleontology 2:61-69 [S. Holland/T. Hanson/S. Bruning]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 24569: authorized by Steven Holland, entered by Tori Hanson on 10.08.2002
Creative Commons license: CC BY (attribution)
Taxonomic list
Conodonta | |
Drepanoistodus suberectus Branson and Mehl 1933 conodont
? Paroistodus mutatus conodont | |
Staufferella inaligerae conodont | |
| |
Gamachignathus ensifer conodont
Gamachignathus hastatus conodont | |
Rhipidognathus symmetricus Branson et al. 1951 conodont | |
Pseudooneotodus mitratus Moskalenko 1973 conodont
Pseudooneotodus beckmanni Bischoff and Sannemann 1958 conodont
Phragmodus undatus conodont | |
Amorphognathus cf. ordovicicus Bergström and Bergström 1996 conodont | |
Aphelognathus aff. grandis conodont
Aphelognathus pyramidalis Branson et al. 1951 conodont
Oulodus rohneri conodont
Oulodus ulrichi conodont | |
Plegagnathus dartoni, Belodina dispansa, Belodina profunda, ? Belodina sp., Belodina compressa, Panderodus clinatus, Panderodus gibber, Panderodus graciliis, Panderodus liratus, Panderodus cf. staufferi, Panderodus spp., Panderodus panderi, Panderodus feulneri
Belodina dispansa conodont
Belodina profunda conodont
Belodina compressa Branson and Mehl 1933 conodont
Panderodus clinatus conodont
Panderodus gibber conodont
Panderodus graciliis conodont
Panderodus liratus conodont
Panderodus cf. staufferi conodont
Panderodus panderi Stauffer 1940 conodont
Panderodus feulneri Glenister 1957 conodont | |
Walliserodus cf. curvatus Branson and Branson 1947 conodont | |
Ptiloncodus | |
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