Avalanche Lake AV4B sample 111.6 (Silurian of Canada)

Where: Northwest Territories, Canada (63.2° N, 126.3° W: paleocoordinates 9.4° N, 54.2° W)

• coordinate estimated from map

• hand sample-level geographic resolution

When: Whittaker Formation, Rhuddanian (443.4 - 440.8 Ma)

• bed-level stratigraphic resolution

Environment/lithology: lithified, argillaceous 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 180246: authorized by Emilia Jarochowska, entered by Emilia Jarochowska on 12.07.2016

Creative Commons license: CC BY (attribution)

Taxonomic list

 Belodellida - Dapsilodontidae
? Dapsilodus "sp. A" Cooper 1976 conodont
 Panderodontida - Panderodontidae
Panderodus gracilis Branson and Mehl 1933 conodont
 Ozarkodinida -
Ozarkodina hassi Pollock et al. 1970 conodont
  - Strachanognathidae