Manlius Formation
Geology
Group: Helderberg
Members: unnamed (1), Olney (1), Thacher (3)
Lithologies: marl (2), lime mudstone (3), "reef rocks" (1)
Paleoenvironments: peritidal (1), shallow subtidal indet. (3), lagoonal/restricted shallow subtidal (1)
Age range: Lochkovian or 419.62000 to 413.02000 Ma