Avalanche Lake AV1 sample 4 (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 180205: authorized by Emilia Jarochowska, entered by Emilia Jarochowska on 11.07.2016

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
Zanclodus levigatus
Conodonta
 Protopanderodontida - Drepanoistodontidae
Drepanoistodus suberectus, ? Paroistodus "sp. A"
Drepanoistodus suberectus Branson and Mehl 1933 conodont
? Paroistodus "sp. A" Lindström 1971 conodont
 Protopanderodontida - Protopanderodontidae
Staufferella divisa
 Ozarkodinida -
Plectodina ? aculeatoides, Plectodina tenuis, Ozarkodina sesquipedalis
Ozarkodina sesquipedalis Nowlan et al. 1988 conodont
 Prioniodontida -
Aphelognathus politus
 Panderodontida - Panderodontidae
Belodina confluens, ? Panderodus clinatus, ? Panderodus gibber, ? Panderodus ? panderi, Panderodus rhamphoides, Panderodus gracilis, Pseudobelodina cf. adentata, Pseudobelodina inclinata, Pseudobelodina quadrata, Pseudobelodina vulgaris
Belodina confluens Sweet 1979 conodont
? Panderodus ? panderi Stauffer 1940 conodont
Panderodus rhamphoides Aldridge and Mohamed 1982 conodont
Panderodus gracilis Branson and Mehl 1933 conodont
Pseudobelodina vulgaris Sweet 1979 conodont
Subspecies "P. vulgaris vulgaris"
 Belodellida - Belodellidae
Walliserodus amplissimus, Coelocerodontus trigonius
Walliserodus amplissimus Serpagli 1967 conodont
Coelocerodontus trigonius Ethington 1959 conodont