Onychopterellidae

Onychopterellidae are an extinct family of eurypterids. The family is the only family classified as part of the superfamily Onychopterelloidea. Genera included are Onychopterella and Tylopterella. Alkenopterus was once included in the OnychopterellidaeDunlop, 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). but has since been classified in its own family, Alkenopteridae.

See also List of eurypterids

References