Mackenzie Mountains, Flood Creek, Broken Skull Fm. Hesperonomia Fauna (Ordovician to of Canada)

Where: Québec, Canada (62.3° N, 126.5° W: paleocoordinates 4.2° N, 61.6° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Hesperonomia zone, Broken Skull Formation, Canadian to Canadian (485.4 - 457.3 Ma)

• formation-level stratigraphic resolution

Environment/lithology: brown, silty, sandy limestone and brown, silty, sandy dolomite

• Environmental call by T. Hanson.
• Limestone or dolostone, craggy appearance, silty or sandy, dull brown weathering color.

Size class: macrofossils

Collection methods: Fauna may belong to the Hesperonomia fauna.

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 25282: authorized by Steven Holland, entered by Tori Hanson on 06.09.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Trilobita
 Phacopida - Pliomeridae
Pseudocybele sp.
Pseudocybele sp. Ross 1951 trilobite
 Proetida - Bathyuridae
"Goniotelina sp." = Acidiphorus
"Goniotelina sp." = Acidiphorus Raymond 1925 trilobite
 Proetida - Telephinidae
? Carolinites sp.
? Carolinites sp. Kobayashi 1940 trilobite
Rhynchonellata
 Orthida - Hesperonomiidae
? Hesperonomiella sp.