Mahantango Formation

Geology

Group: Hamilton

Members: unnamed (2), Chaneysville (2), Clearville (1), Frame Shale (3), Gander Run (1), lower part of upper shale (2), lower shale (1), Montebello (20), Montebello Sandstone (2), Sherman Ridge (1), Upper part of Upper Shale (1), Upper shale (35)

Lithologies: "siliciclastic" (1), claystone (10), "shale" (20), siltstone (23), sandstone (19), conglomerate (1)

Paleoenvironments: marine indet. (62), carbonate indet. (1), shoreface (2), transition zone/lower shoreface (5), offshore (1)

Age range: Givetian or 387.70000 to 382.70000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Givetian387.7 - 382.7USA (Pennsylvania) (627 669 670 9657 9658 9659 9660 9661 9662 9663 9664 9665 9666 9667 9670 9674 9675 9704 9705 9706 9707 9708 9902 9882 9883 9886 9887 9888 9893 9895 9896 9897 9898 9899 9901 9903 9904 9905 9906 9907 9908 9909 9911 9912 9913 9914 9915 9916 9922 9923 9924 9925 9926 9927 9957 9991 10099 50947 54377 54570 54697 54741 54830 54831 54848 54859 54860 54948 54957 54958)
Givetian387.7 - 382.7USA (West Virginia) (96330)