Simcoe Group

Geology

Formations: Bobcaygeon (8), Bobcaygeon-Verulam (2), Gull River (4), Lindsay (2), Verulam (17)

Lithologies: "shale" (11), siltstone (7), lime mudstone (1), wackestone (7), "limestone" (23), "carbonate" (1)

Paleoenvironments: carbonate indet. (2), shallow subtidal indet. (6), open shallow subtidal (5), lagoonal/restricted shallow subtidal (2), reef, buildup or bioherm (1), deep subtidal indet. (16), transition zone/lower shoreface (1)

Age range: base of the Turinian to the top of the Maysvillian or 457.30000 to 449.60000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Caradoc458.2 - 449.5Canada (Ontario) (26274 26275 26276 26290)
Turinian457.3 - 453.8Canada (Ontario) (26174 26175 26188 26191 89081)
Blackriveran457.3 - 449.6Canada (Ontario) (26172 80616)
Kirkfieldian457.3 - 449.6Canada (Ontario) (26192)
Shermanian457.3 - 449.6Canada (Ontario) (26272)
Chatfieldian453.8 - 451.0Canada (Ontario) (26263 26267 26268 26269 26270 26271 26273 26277 192086)
Katian452.8 - 445.2Canada (Ontario) (192275 192276 192277 192278 200125 200139 207290 211924 228229)
Edenian - Maysvillian451.0 - 449.6Canada (Ontario) (26293 26294)