66n. Cordilleran area from Glacier Lake near the head of the Saskatchewan River (Ordovician of Canada)

Also known as 255’ from Mons summit

Where: Alberta, Canada (51.9° N, 116.9° W: paleocoordinates 2.2° S, 72.6° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Gasconadian (485.4 - 477.7 Ma)

• Walcott gave this as the Mons formation: outdated. This is from the upper 50 ft of the formation in this section

• group of beds-level stratigraphic resolution

Environment/lithology: gray limestone

• thin-bedded gray limestone

Size class: macrofossils

Preservation: cast

Reposited in the USNM

Primary reference: C. D. Walcott. 1924. Cambrian and Ozarkian Brachiopoda, Ozarkian Cephalopods and Notostraca. Smithsonian Miscellaneous Collections 67:477-554 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 157026: authorized by Pete Wagner, entered by Pete Wagner on 04.06.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

Rhynchonellata
 Pentamerida - Tetralobulidae
"Syntrophia perilla" = Palaeostrophia perilla
"Syntrophia perilla" = Palaeostrophia perilla Walcott 1924
 Pentamerida - Syntrophiidae
Syntrophia nonus Walcott 1924
Cephalopoda
 Ellesmerocerida - Ellesmeroceratidae
"Ellesmeroceras robsonensis" = Robsonoceras robsonense, "? Endoceras monsensis" = Walcottoceras monsense
"Ellesmeroceras robsonensis" = Robsonoceras robsonense Walcott 1924
"? Endoceras monsensis" = Walcottoceras monsense Walcott 1924
Rostroconchia
 Ribeirioida - Technophoridae
"Ozomia lucan n. gen. n. sp." = Ribeiria lucan
"Ozomia lucan n. gen. n. sp." = Ribeiria lucan Walcott 1924