Petrunkevitch, A. (1953). Paleozoic and Mesozoic Arachnida of Europe. Memoirs of the Geological Society of America 53: i–xi, 1–128.
| Taxon | |
|---|---|
| Chelifer fossilis Weyenbergh, 1874 (Pseudoscorpiones: Cheliferidae) | 45, (probably a crustacean), Chelifer fossilis |