Hassel Formation
Geology
Collections
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Emsian | Morocco | (211362) | |
| Emsian | Morocco (Tafliat) | (181903) | |
| Albian | Canada (Nunavut) | (32587 32588 32589) | |
| Albian - Cenomanian | Canada (Nunavut) | (32584) | |
| Middle Albian - Late/Upper Albian | Canada (Nunavut) | (32590) | |
| Cenomanian - Turonian | Canada (Nunavut) | (32582) |