Taxon: ***Aptychus *von Meyer, 1831**
**Time period**: [Portlandian - Tithonian](https://en.wikipedia.org/wiki/Portland_Group_(geology)) (152.1 to 145.0 million years ago)
**Collection location: **Boulonnais, Pas-de-Calais, France
**MnhnL collection number:** EP25401
This specimen originates from the palaeontological collection of [Edmond Pellat](https://fr.wikipedia.org/wiki/Edmond_Pellat), it is now kept at the palaeontological collection of the [Luxembourg National Museum of Natural History (MnhnL)](https://www.mnhn.lu/) in Luxembourg.