Onychopterellidae

Onychopterellidae are an extinct family of eurypterids. The family is the only family classified as part of the superfamily Onychopterelloidea. Genera included are Alkenopterus, Onychopterella and Tylopterella.^[1]

Onychopterellidae Temporal range: Late Hirnantian–Early Emsian, 443.9–406 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Fossil of Tylopterella.
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Subphylum:	Chelicerata
Order:	†Eurypterida
Suborder:	†Eurypterina
Superfamily:	†Onychopterelloidea Lamsdell, 2011
Family:	†Onychopterellidae Lamsdell, 2011
Type species
†Onychopterella kokomoensis Miller & Gurley, 1896
Genera
†Alkenopterus †Onychopterella †Tylopterella
Synonyms
Alkenopteridae Poschmann & Tetlie, 2004

See also

• List of eurypterids