Eurydinium ingramii (Cookson and Eisenack, 1970) Stover and Evitt, 1978

Originally Delqandrea, subsequently Senegalinium, thirdly (and now) Eurydinium. See also Alterbia (combination illegitimate).
Holotype: Cookson and Eisenack, 1970, pl.12, fig.9
Locus typicus: Madura No. 1 Bore, Eucla Basin, W Australia
Stratum typicum: Albian-Cenomanian

Original description: Cookson and Eisenack, 1970, p.143: Deflandrea ingramii
Shell rather flat, approximately oval in outline with a thin, untabulated wall, and a small, flat, median apical projection on the left-hand side. Slight lateral concavities indicative of a transverse girdle are evident in the holotype.
A large oval capsule almost fills the shell both laterally and longitudinally. Its wall is slightly thicker than that of the shell and appears to be ornamented with small, closely arranged, low, dot-like thickenings (Pl. 12, fig. 8).
A six-sided archeopyle is outlined in the apical region of the epitheca of the holotype and the example shown in Pl. 12, fig. 8.
Dimensions: Holotype: length c. 67 Ám, breadth 48 Ám. Paratype: c. 75x56 Ám. Range: length c. 68-80 Ám, breadth 46-66 Ám.