Sharps Formation

Geology

Members: unnamed (42), lower (1), middle (11), Rockyford (1), upper (14)

Lithologies: not reported (2)

Paleoenvironments: terrestrial indet. (67), fluvial indet. (2)

Age range: base of the Whitneyan to the top of the Geringian or 33.30000 to 26.30000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Whitneyan33.3 - 30.8USA (South Dakota) (17379)
Geringian30.8 - 26.3USA (South Dakota) (17459 17501 17505 17589 17592 17593 17607 17608 17609 17610 17611 17612 17613 17614 17615 17616 17617 17618 17619 17620 17621 17622 17623 17624 17625 17626 17627 17628 17629 17630 17631 17632 17633 17634 17635 17636 17637 17638 17639 17640 17641 17642 17643 17644 17645 17646 17647 17648 17649 17650 17651 17652 17653 17654 17655 17656 17657 17658 17659 17660 17661 17662 17663 17665 17668 17693 17705)
Arikareean29.5 - 18.5USA (South Dakota) (17496)