Mackenzie Mountains, Whittaker Range, Esbataottine Fm Doleroides Fauna (Ordovician to of Canada)

Where: Northwest Territories, Canada (62.5° N, 124.9° W: paleocoordinates 6.7° N, 57.1° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Esbataottine Formation, Blackriveran to Blackriveran (457.3 - 449.5 Ma)

• formation-level stratigraphic resolution

Environment/lithology: gray, argillaceous, silty limestone

• Environmental call by T. Hanson
• "[M]edium to dark grey, microcrystalline to finely crystalline, thin to medium bedded, commonly argillaceous and silty limestones that weathers banded grey and buff."

Size class: macrofossils

Primary reference: R. Ludvigsen. 1975. Ordovician formations and faunas, southern Mackenzie Mountains. Canadian Journal of Earth Sciences 12:663-697 [S. Holland/T. Hanson/J. Ju]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 25305: authorized by Steven Holland, entered by Tori Hanson on 07.09.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
"Isotelids" sp.
Trilobita
 Phacopida - Cheiruridae
Ceraurus sp.
Ceraurus sp. Green 1832 trilobite
 Phacopida - Pterygometopidae
Calyptaulax sp.
Calyptaulax sp. Cooper 1930 trilobite
 Proetida - Bathyuridae
Bathyurus sp., Bathyurus cf. extans
Bathyurus sp. Billings 1859 trilobite
Bathyurus cf. extans Hall 1847 trilobite
Deuteropoda
  -
Ostracoda indet.
Ostracoda indet. Latreille 1802 ostracod
Brachiopoda
  -
Brachiopoda indet.
Brachiopoda indet. Cuvier 1805
Strophomenata
 Strophomenida - Furcitellidae
Oepikina sp.
Oepikina sp. Salmon 1942
 Strophomenida - Strophomenidae
Strophomena cf. sp.
Strophomena cf. sp. Rafinesque and De Blainville 1824
Rhynchonellata
 Orthida - Plectorthidae
Doleroides sp.
Doleroides sp. Cooper 1930