Difference between revisions of "Dinogymnium cretaceum var. undulacostatum"

Revision as of 13:30, 2 December 2016

"var. undulacostatum" Boltenhagen, 1977, p.68-69, pl.10, figs.1a-c,2a-b,3a-b,4a-b,5a-b.  Name not validly published: holotype not designated.  Originally Dinogymnium cretaceum var. undulacostatum (name not validly published), subsequently Dinogymnium cretaceum subsp. undulacostatum (combination not validly published).  Age: Turonian-Maastrichtian.