Dukamaje Formation
Geology
Members: unnamed (5), Gypsiferous shale (1)
Lithologies: "siliciclastic" (1), mudstone (1), "shale" (2), siltstone (1), marl (1)
Paleoenvironments: marine indet. (2), terrestrial indet. (1), marginal marine indet. (3)
Age range: Maastrichtian or 72.20000 to 66.00000 Ma
Collections
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Maastrichtian | Nigeria (Sokoto) | (82229) | |
| Maastrichtian | Niger (Tahoua) | (48868 104945 178660 178661) | |
| Maastrichtian | Nigeria (Sokoto) | (104944) |