Taxon: ***Stenopterygius quadriscissus* (Quenstedt, 1856)** - **Ichthyosaur**
**Time period**: [Lower Toarcian, *Harpoceras falciferum* biozone](https://en.wikipedia.org/wiki/Toarcian) (183 million years ago)
**Collection location: **[Dudelange, usine Luxguard 2, Luxembourg](https://www.openstreetmap.org/search?query=Dudelange%2C%20Luxembourg#map=14/49.5015/6.1033)
**MnhnL collection number:** TV211
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.