Hyolithidae
The Hyolithidae are a family of hyoliths that lived from the Early Cambrian until the Late Permian.
Genera
- Brittanella Malinky & Racheboeuf, 2010
- Carinolithes Sysoev, 1958
- Dilytes Marek, 1974
- Elegantilites Marek, 1966
- Eumorpholites Marek, 1967
- Gompholites Marek, 1967
- Hallotheca Malinky, Linsley & Yochelson, 1987
- Haplophrentis Matthew, 1899
- Helenia Walcott, 1890
- Hyolithes d'Eichwald, 1840
- Joachimilites Marek, 1967
- Korilithes Missarzhevsky, 1969
- Maxilites Marek, 1972
- Nevadalites Marek, 1976
- Nevadotheca Malinky, 1988
- Novakotheca Malinky, 1990