Exter Formation
Geology
Group: Keuper
Members: unnamed (11)
Lithologies: not reported (1), "siliciclastic" (1), mudstone (2), "shale" (2), siltstone (4), sandstone (1), chalk (1)
Paleoenvironments: marine indet. (3), terrestrial indet. (2), coastal indet. (3), deltaic indet. (2), lacustrine - small (1)
Age range: Rhaetian or 205.70000 to 201.40000 Ma
Collections
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Rhaetian | Germany | (151917) | |
| Rhaetian | Germany (Baden-Württemberg) | (67914 91635 131422 194663) | |
| Rhaetian | Germany (North Rhine-Westphalia) | (275902 275903 275904) | |
| Rhaetian | Germany (Westphalia) | (194782 218156 234112) |