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Dinogymnium cretaceum ssp. undulacostatum
Dinogymnium cretaceum ssp. undulacostatum (Boltenhagen, 1977) Lentin and Williams, 1981
Combination not validly published: holotype not designated.
Originally Dinogymnium cretaceum var. undulacostatum (name not validly published), subsequently Dinogymnium cretaceum subsp. undulacostatum (combination not validly published).
Holotype: not designated
Age: Turonian-Maastrichtian
Combination not validly published: holotype not designated.
Originally Dinogymnium cretaceum var. undulacostatum (name not validly published), subsequently Dinogymnium cretaceum subsp. undulacostatum (combination not validly published).
Holotype: not designated
Age: Turonian-Maastrichtian