The information on this page is a summary description.
The full formal description is available here: Roisin Member
| Abbreviation | ROI |
| Parent unit | Rivière Formation |
| Child units | |
| Lithological description | Greenish to brownish sandstone with crinoid and brachiopod steinkerns. |
| Age | Eifelian |
| Thickness | 45 m in the type area. |
| Area of occurrence | Northern limb of the Dinant Synclinorium, west of the Eau dHeure River valley. |
| Type locality | Honnelle River valley, south of the place known as the Caillou-qui-Bique. |
| Alternative names | Macigno de Roisin, Grauwacke de Roisin |
| Authors | Denayer, J., Coen-Aubert, M., Marion, J.-M. & Mottequin, B. |
| Date | 23/09/2025 |
| Cite as | Denayer, J., Coen-Aubert, M., Marion, J.-M. & Mottequin, B., 2025. The Roisin Member, 23/09/2025. National Commission for Stratigraphy Belgium. https://ncs.naturalsciences.be/lithostratigraphy/Roisin-Member |
| Additional information |
