Avalanche Lake AV4B sample 62 (Ordovician of Canada)

Where: Northwest Territories, Canada (63.2° N, 126.3° W: paleocoordinates 8.0° N, 55.8° W)

• coordinate estimated from map

• hand sample-level geographic resolution

When: Whittaker Formation, Late/Upper Ordovician (458.4 - 443.8 Ma)

• bed-level stratigraphic resolution

Environment/lithology: lithified limestone

Size class: microfossils

Preservation: original phosphate

Collection methods: bulk, chemical, acetic, sieve

Primary reference: G. S. Nowlan, A. D. McCracken, and B. D. E. Chatterton. 1988. Conodonts from Ordovician-Silurian boundary strata, Whittaker Formation, Mackenzie Mountains, Northwest Territories. Geological Survey of Canada Bulletin 373:1-99 [E. Jarochowska/E. Jarochowska]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 180234: authorized by Emilia Jarochowska, entered by Emilia Jarochowska on 12.07.2016

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
Zanclodus levigatus
Conodonta
 Prioniodontida -
Pseudooneotodus mitratus
Pseudooneotodus mitratus Moskalenko 1973 conodont
 Prioniodontida - Strachanognathidae
Decoriconus costulatus, Scabbardella "n. sp. A", Scabbardella altipes
Scabbardella "n. sp. A" Orchard 1980 conodont
Scabbardella altipes Hennigsmoen 1948 conodont
 Prioniodontida -
Phragmodus undatus
 Belodellida -
Besselodus borealis
Besselodus borealis Nowlan et al. 1988 conodont
 Panderodontida - Panderodontidae
Pseudobelodina inclinata, ? Pseudobelodina dispansa, ? Pseudobelodina cf. dispansa, Pseudobelodina vulgaris, ? Panderodus gibber, Panderodus rhamphoides, Panderodus gracilis, Panderodus serratus, Belodina confluens
? Pseudobelodina dispansa Glenister 1957 conodont
? Pseudobelodina cf. dispansa Glenister 1957 conodont
Pseudobelodina vulgaris Sweet 1979 conodont
Subspecies "P. vulgaris vulgaris"
Panderodus rhamphoides Aldridge and Mohamed 1982 conodont
Panderodus gracilis Branson and Mehl 1933 conodont
Panderodus serratus Rexroad 1967 conodont
Belodina confluens Sweet 1979 conodont
 Ozarkodinida -
Ozarkodina sesquipedalis
Ozarkodina sesquipedalis Nowlan et al. 1988 conodont
 Protopanderodontida - Drepanoistodontidae
Drepanoistodus suberectus, ? Paroistodus "sp. A"
Drepanoistodus suberectus Branson and Mehl 1933 conodont
? Paroistodus "sp. A" Lindström 1971 conodont
 Protopanderodontida - Protopanderodontidae
Staufferella divisa, Protopanderodus liripipus
Protopanderodus liripipus Kennedy et al. 1979 conodont