†family Cryptotaxidae Klapper and Philip 1972 (conodont)
Conodonta - Ozarkodinida - Cryptotaxidae
Parent taxon: Polygnathacea according to D.L. Clark et al. 1981
Sister taxa: Cavusgnathidae, Clydagnathus, Dinodus, Eognathodus, Kockelellamecdup, Lochriea, Nicollidina, Polygnathidae, Vogelgnathus
Subtaxa: Cryptotaxis Patrognathus
Type: Cryptotaxis
Ecology: nektonic carnivore
Distribution:
• Carboniferous of the Russian Federation (2 collections), the United Kingdom (1), United States (1: Iowa)
• Devonian of Brazil (1)
Total: 5 collections each including a single occurrence