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Alterbia acuminata
Alterbia acuminata, (Cookson and Eisenack, 1958), Lentin and Williams, 1976
Combination illegitimate, but original diagnosis same as Isabelidinium acuminatum
NOW Isabelidinium. Originally Deflandrea, subsequently Alterbia (combination illegitimate), thirdly Senegalinium, fourthly (and now) Isabelidinium. The transfer of this species to Senegalinium Jain and Millepied, 1973 by Loeblich Jr. and Tappan (1977, p.365) was not accepted by Lentin and Williams (1981, p.9).
Holotype: Cookson and Eisenack, 1958, pl.4, fig.5.
Age: Cenomanian-Early Turonian.
Combination illegitimate, but original diagnosis same as Isabelidinium acuminatum
NOW Isabelidinium. Originally Deflandrea, subsequently Alterbia (combination illegitimate), thirdly Senegalinium, fourthly (and now) Isabelidinium. The transfer of this species to Senegalinium Jain and Millepied, 1973 by Loeblich Jr. and Tappan (1977, p.365) was not accepted by Lentin and Williams (1981, p.9).
Holotype: Cookson and Eisenack, 1958, pl.4, fig.5.
Age: Cenomanian-Early Turonian.