| Duffinselache Temporal range: Late Triassic,   | |
|---|---|
|  Scientific classification   | |
| Kingdom: | Animalia | 
| Phylum: | Chordata | 
| Class: | Chondrichthyes | 
| Subclass: | Elasmobranchii | 
| Division: | Selachii | 
| Genus: | † Duffinselache  Andreev & Cuny, 2012  | 
| Species: | †D. holwellensis  | 
| Binomial name | |
| †Duffinselache holwellensis (Duffin, 1998)  | |
| Synonyms | |
†Polyacrodus holwellensiDuffin, 1998  | |
Duffinselache (Duffin's shark) is an extinct genus of basal shark elasmobranchii cartilaginous fish, known from a single species, Duffinselache holwellensis, collected from the Late Triassic (Rhaetian stage) of England. [1] It was first named by Duffin in 1998 as a species of Polyacrodus . Plamen S. Andreev and Gilles Cuny in 2012 reassigned it to a new genus as its type species, Polyacrodus holwellensis. [2]