| Bathytheristes Temporal range:  | |
|---|---|
| Scientific classification   | |
| Kingdom: | Animalia | 
| Phylum: | Chordata | 
| Class: | Chondrichthyes | 
| Subclass: | Holocephali | 
| Order: | Chimaeriformes | 
| Family: | Callorhinchidae | 
| Genus: | † Bathytheristes Duffin, 1995 | 
Bathytheristes is an extinct genus of chimaera from the late Early Jurassic epoch of the Jurassic Period. Its name roughly translates to "Reaper of the deep." It is known from a single species, B. gracilis. It was discovered in the early Toarcian-aged Posidonia Shale Formation of Ohmden, Germany. The specific epithet refers to the slender of the tooth plate in this species. It is related to the modern elephantfish. [1] [2]