Silverdale Formation

Geology

Members: unnamed (5), Barrandella Shale (1), Bowspring Limestone (2), Hume Limestone (1)

Lithologies: not reported (3), mudstone (1), siltstone (1), lime mudstone (1), grainstone (1), "limestone" (2)

Paleoenvironments: marine indet. (9)

Age range: base of the Gorstian to the top of the Late/Upper Oligocene or 426.70000 to 23.04000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Gorstian426.7 - 425.0Australia (Australian Capital Terriories) (25688)
Gorstian426.7 - 425.0Australia (Australian Capital Territory) (25639 25642)
Gorstian426.7 - 425.0Australia (Australian Capital Territories) (25687)
Chattian27.3 - 23.04USA (North Carolina) (66192 66195)
Late/Upper Oligocene27.3 - 23.04USA (North Carolina) (92606 92719 111195)