The information on this page is a summary description.
The full formal description is available here: Longlier Formation
| Abbreviation | LOG |
| Parent unit | none |
| Child units | |
| Lithological description | Brownish fine-grained, argillaceous and limonitic sandstone rich in bioturbation and dissolved fossils, alternating with laminar siltstones. |
| Age | Pragian |
| Thickness | 400 to 900 metres |
| Area of occurrence | Along both limb of the Neufchâteau Eifel Synclinorium, east of Saint-Médard. |
| Type locality | The original stratotype does not exist anymore but composite sections along the Ourthe oriental River downstream Houffalize act as type section. |
| Alternative names | Quartzophyllades de Longlier |
| Authors | Denayer, J. & Mottequin, B. |
| Date | 23/09/2025 |
| Cite as | Denayer, J. & Mottequin, B., 2025. The Longlier Formation, 23/09/2025. National Commission for Stratigraphy Belgium. https://ncs.naturalsciences.be/lithostratigraphy/Longlier-Formation |
| Additional information |
