Wilson Loc 072. Mechanicsville, Ottawa (Ordovician of Canada)

Where: Ontario, Canada (45.4° N, 75.7° W: paleocoordinates 25.4° S, 52.3° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Phragmodus undatus conodont zone, Chaumont Formation, Turinian (460.9 - 449.5 Ma)

• Given as Leray in Wilson (1951).

• formation-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified limestone

• carbonate platform

Size class: macrofossils

Preservation: replaced with silica

Reposited in the GSC

Collection methods: bulk,

Primary reference: A. E. Wilson. 1951. Gastropoda and Conularida of the Ottawa Formation of the Ottawa - St. Lawrence Lowland. Geological Survey of Canada Bulletin 17:1-149 [P. Wagner/P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 185429: authorized by Pete Wagner, entered by Pete Wagner on 23.04.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

 Trochonematoidea - Lophospiridae
Lophospira milleri Miller 1877 snail
Eunema centralis Ulrich and Scofield 1897 snail
 Euomphalina - Helicotomidae
Helicotoma planulata Salter 1859 snail
 Bellerophontida - Plectonotidae
Tetranota bidorsata Hall 1847 snail
 Bellerophontida - Pterothecidae
Pterotheca expansa Emmons 1842 snail
 Murchisoniina - Eotomariidae
Liospira vitruvia Billings 1865 snail
Clathrospira subconica Hall 1847 snail
 Murchisoniina - Hormotomidae
Hormotoma gracilis Hall 1847 snail
 Murchisoniina - Loxonematidae
Omospira alexandra Billings 1865 snail
 Murchisoniina - Subulitidae
Subulites canadensis Ulrich and Scofield 1897 snail