Verulam Formation

Geology

Group: Simcoe

Members: unnamed (9), Cystid Beds (6), Lower (9), Upper (4)

Lithologies: mudstone (8), "shale" (9), siltstone (3), lime mudstone (1), wackestone (4), packstone (7), "limestone" (15), "carbonate" (1)

Paleoenvironments: carbonate indet. (2), shallow subtidal indet. (4), deep subtidal indet. (22)

Age range: base of the Katian to the top of the Chatfieldian or 452.80000 to 451.00000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Caradoc458.2 - 449.5Canada (Ontario) (336 26274 26275 26276 26290 64561 64563)
Shermanian457.3 - 449.6Canada (Ontario) (26272 64568)
Chatfieldian453.8 - 451.0Canada (Ontario) (26267 26268 26269 26270 26271 26273 26277 192086 197145 197147 197156 197159)
Chatfieldian453.8 - 451.0Canada (Quebec) (185477 195616 197142)
Katian452.8 - 445.2Canada (Ontario) (192275 192276 192277 200139 207290 211924)