Morone de Lucia, M.R., Grimaldi de Zio, S. & D'Addabbo Gallo, M. (1984). Description of Parastygarctus biungulatus n. sp. and hypothesis of phylogeny in the Stygarctidae family (Heterotardigrada: Arthrotardigrada). Oebalia. 10: 85–94.
229543
Morone de Lucia, M.R., Grimaldi de Zio, S. & D'Addabbo Gallo, M.
1984
Description of Parastygarctus biungulatus n. sp. and hypothesis of phylogeny in the Stygarctidae family (Heterotardigrada: Arthrotardigrada).