Genus Raskyella (Grambast & Grambast, 1954) emend. Grambast, 1962b

Type species. Raskyella peckii Grambast & Grambast, 1954 .

Remarks. This species is understood as including several traditional taxa belonging to the genus Raskyella, which form a gradualistic lineage during the Eocene. These traditional taxa have been newly combined here to anagenetic varieties within a single evolutionary lineage or an evolutionary species, following the recommendations of Wiley (1981) and Ax (1987).