Onychopterellidae

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
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;

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]

References

Dunlop, J. A., Penney, D. & Jekel, D. 2015. A summary list of fossil spiders and their relatives. In World Spider Catalog. Natural History Museum Bern, online at http://wsc.nmbe.ch, version 16.0 http://www.wsc.nmbe.ch/resources/fossils/Fossils16.0.pdf (PDF).

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