ammonites

Wills Creek Limestone Formation

Geology

Members: unnamed (25)

Lithologies: mudstone (4), "shale" (18), sandstone (4), "limestone" (14)

Paleoenvironments: carbonate indet. (15), foreshore (3), transition zone/lower shoreface (2), offshore (5)

Age range: base of the Ludlow to the top of the Pridoli or 422.900 to 416.000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Ludlow - Pridoli422.9 - 416.0USA (West Virginia) (41156 41157 41159 41160 41161 41727 41728)
Ludlow - Pridoli422.9 - 416.0USA (Maryland) (41131 41142 41144 41145 41146 41147 41148 41149 41151 41152 41153 41154 41155 41166 41167 41168 41170 41171)