system, Taxa Only, Exact Match: 2 Treatments

Tarsonops systematicus			Dean, David Allen, 2016, Catalogue of Texas spiders, ZooKeys 570, pp. 1-703 : 69	69
Systemodon			Froehlich, David J., 2002, Quo vadis eohippus? The systematics and taxonomy of the early Eocene equids (Perissodactyla), Zoological Journal of the Linnean Society 134 (2), pp. 141-256 : 148	148