Subfamily Bythitinae Gill 1861 (ray-finned fish)
Actinopteri - Ophidiiformes - Bythitidae
Parent taxon: Bythitidae according to W. Schwarzhans 2019
See also Schwarzhans and Bratischko 2011 and Steurbaut 1984
Sister taxa: Aphyoninae, Bellotia, Brosmophycinae, Brosmophyciops, Brosmophycis, Bythitidarum, Dinematichthyinae, Dinematichthys, Diplacanthopoma, Grammonus, Propteridium, Timorichthys
Subtaxa: Oligopus Saccogaster
Ecology: nektobenthic carnivore-parasite
Distribution:
• Quaternary of United States (1: Louisiana collection)
• Mangapanian of New Zealand (1)
• Pliocene of New Zealand (1)
• Miocene of France (1), Gabon (1), Italy (1), New Zealand (5)
• Oligocene of France (2)
• Eocene of Australia (1), France (1)
Total: 15 collections each including a single occurrence