†family Alkenopteridae Poschmann and Tetlie 2004 (eurypterid)
Full reference: M. Poschmann and O. E. Tetlie. 2004. On the Emsian (Early Devonian) arthropods of the Rhenish Slate Mountains: 4. The eurypteridsAlkenopterus andVinetopterus n. gen. (Arthropoda: Chelicerata). Senckenbergiana lethaea 84(1-2):173-193
Parent taxon: Alkenopteroidea according to J. C. Lamsdell 2025
See also Dunlop et al. 2020
Sister taxa: none
Subtaxa: Alkenopterus
Type: Alkenopterus
Ecology: nektobenthic carnivore
Distribution: found only at Alken #3, Nellen Koepfchen Beds, Germany (Devonian of Germany)