Alterbia eyrensis

"?eyrensis" (Cookson and Eisenack, 1971, p.217–218, pl.7, figs.2–3) Lentin and Williams, 1976, p.49.  Holotype: Cookson and Eisenack, 1971, pl.7, fig.3.  Combination illegitimate: the generic name Alterbia is illegitimate.  NOW Eurydinium.  Originally Deflandrea, subsequently Alterbia? (combination illegitimate), thirdly (and now) Eurydinium.  Questionable assignment: Lentin and Williams (1976, p.49).  Age: Albian–Cenomanian.

Parent: Alterbia