PBDB Collection

Anticosti Island, Ellis Bay Formation Member 1 Conodonts (Ordovician of Canada)

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

• Shale, calcareous with limestone interbeds, and limestone with shale partings, some with ripple marks.

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

• Conodonts only. This should be broken down into localities (PJW).

Show authors, comments, and common names

Conodonta
Prioniodontida -	Aphelognathus aff. grandis, Aphelognathus pyramidalis, Oulodus rohneri, Oulodus ulrichi, Pseudooneotodus mitratus, Pseudooneotodus beckmanni Aphelognathus aff. grandis conodont Aphelognathus pyramidalis Branson et al. 1951 conodont Oulodus rohneri conodont Oulodus ulrichi conodont Pseudooneotodus mitratus Moskalenko 1973 conodont Pseudooneotodus beckmanni Bischoff and Sannemann 1958 conodont
Prioniodontida - Rhipidognathidae	Rhipidognathus symmetricus Rhipidognathus symmetricus Branson et al. 1951 conodont
Prioniodontida - Balognathidae	Amorphognathus cf. ordovicicus Amorphognathus cf. ordovicicus Bergström and Bergström 1996 conodont
Prioniodontida -	Phragmodus undatus Phragmodus undatus conodont
Belodellida - Belodellidae	Walliserodus cf. curvatus Walliserodus cf. curvatus Branson and Branson 1947 conodont
Panderodontida - Panderodontidae	Plegagnathus dartoni, Panderodus clinatus, Panderodus gibber, Panderodus graciliis, Panderodus liratus, Panderodus cf. staufferi, Panderodus spp., Panderodus feulneri, Panderodus panderi, Belodina dispansa, Belodina profunda, ? Belodina sp., Belodina compressa Plegagnathus dartoni Stone and Furnish 1959 conodont Plegagnathus dartoni s. f. Panderodus clinatus conodont Panderodus gibber conodont Panderodus graciliis conodont Panderodus liratus conodont Panderodus cf. staufferi conodont Panderodus spp. Ethington 1959 conodont Panderodus n. sp A s. f., Panderodus n. sp. B s. f. Panderodus feulneri Glenister 1957 conodont Panderodus panderi Stauffer 1940 conodont Belodina dispansa conodont Belodina profunda conodont ? Belodina sp. Ethington 1959 conodont Belodina? n. sp. A s. f. Belodina compressa Branson and Mehl 1933 conodont
Ozarkodinida -	Gamachignathus ensifer, Gamachignathus hastatus Gamachignathus ensifer conodont Gamachignathus hastatus conodont
Protopanderodontida - Drepanoistodontidae	Drepanoistodus suberectus, ? Paroistodus mutatus Drepanoistodus suberectus Branson and Mehl 1933 conodont ? Paroistodus mutatus conodont
Protopanderodontida - Protopanderodontidae	Staufferella inaligerae Staufferella inaligerae conodont
Proconodontida - Cordylodontidae	Cordylodus robustus Cordylodus robustus conodont "Cordylodus" robustus s. f.
Ptiloncodus
-	Ptiloncodus harrisi Ptiloncodus harrisi Ptiloncodus harrisi s f.