Taxon: ***Pachycormus macropterus (Blainville, 1818)*** - **Ray-finned fish**
**Time period**: [Lower Toarcian, *Harpoceras falciferum* biozone](https://en.wikipedia.org/wiki/Toarcian) (183 million years ago)
**Collection location: **[Sanem, collectrice du Sud, Luxembourg](https://www.openstreetmap.org/search?query=Sanem%2C%20luxembourg#map=15/49.5468/5.9336)
**MnhnL collection number:** TU538
The original specimen of this fossil is kept at the palaeontological collection of the [Luxembourg National Museum of Natural History (MnhnL)](https://www.mnhn.lu/) in Luxembourg.