- Sp. nov
Ceolin et al. Cretaceous–Palaeogene
transition Argentina
Hysterocythereis a****inata Sp. nov
Ceolin et al. Cretaceous–Palaeogene
transition Argentina...
- Trachyleberididae. The type
species is
Hysterocythereis paredros;
genus also
contains Hysterocythereis coinotes and
Hysterocythereis diversotuberculatus, as well...