Dunlop, J. A., Penney, D. & Jekel, D. 2014. A summary list of fossil spiders and their relatives. In Platnick, N. I. (ed.) The world spider catalog, version 15.0 American Museum of Natural History, online at http://research.amnh.org/entomology/spiders/catalog/index.html
Giribet, Gonzalo; Benavides, Ligia R.; Merino-Sáinz, Izaskun (2017-08-30). "The systematics and biogeography of the mite harvestman family Sironidae (Arachnida : Opiliones : Cyphophthalmi) with the description of five new species". Invertebrate Systematics. 31 (4): 456–491. doi:10.1071/IS16086. ISSN1447-2600. S2CID90781847.
Shear, W.A. (1985). "Marwe coarctata: A remarkable new cyphophthalmid from a limestone cave in Kenya (Arachnida, Opiliones)". American Museum Novitates. 2830: 1–6. hdl:2246/3584.
Giribet, Gonzalo; Benavides, Ligia R.; Merino-Sáinz, Izaskun (2017-08-30). "The systematics and biogeography of the mite harvestman family Sironidae (Arachnida : Opiliones : Cyphophthalmi) with the description of five new species". Invertebrate Systematics. 31 (4): 456–491. doi:10.1071/IS16086. ISSN1447-2600. S2CID90781847.
Giribet, Gonzalo; Benavides, Ligia R.; Merino-Sáinz, Izaskun (2017-08-30). "The systematics and biogeography of the mite harvestman family Sironidae (Arachnida : Opiliones : Cyphophthalmi) with the description of five new species". Invertebrate Systematics. 31 (4): 456–491. doi:10.1071/IS16086. ISSN1447-2600. S2CID90781847.