Coeymans Formation

Geology

Group: Helderberg

Members: unnamed (13), Dayville (5), Deansboro (3), Ravena (1)

Lithologies: grainstone (4), "reef rocks" (11), "limestone" (7)

Paleoenvironments: carbonate indet. (2), shallow subtidal indet. (8), open shallow subtidal (1), reef, buildup or bioherm (11)

Age range: Lochkovian or 419.62000 to 413.02000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Lochkovian419.62 - 413.02USA (New York) (76269 76270 76271 76272 76273 76274 76275 76276 76277 76278 76279 76280 76281 76757 76846 76847 76848 76849 76850 83108 83109 83110)