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Alterbia ingramii
Alterbia ingramii, (Cookson and Eisenack, 1970), Lentin and Williams, 1976
Combination illegitimate: the generic name Alterbia is illegitimate.
NOW Eurydinium. Originally Deflandrea, subsequently Alterbia (combination illegitimate), thirdly Senegalinium, fourthly (and now) Eurydinium
Holotype: Cookson and Eisenack, 1970, pl.12, fig.9
Locus typicus: Madura No. 1 Bore, Eucla Basin, Western Australia
Stratum typicum: Senonian
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Original description as Deflandrea ingramii: [Cookson and Eisenack, 1970, p. 143]:
Description:
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 µm, breadth 48 µm.
Paratype: c. 75 µm X 56 µm.
Range: length c. 68-80 µm, breadth 46-66 µm.
Combination illegitimate: the generic name Alterbia is illegitimate.
NOW Eurydinium. Originally Deflandrea, subsequently Alterbia (combination illegitimate), thirdly Senegalinium, fourthly (and now) Eurydinium
Holotype: Cookson and Eisenack, 1970, pl.12, fig.9
Locus typicus: Madura No. 1 Bore, Eucla Basin, Western Australia
Stratum typicum: Senonian
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Original description as Deflandrea ingramii: [Cookson and Eisenack, 1970, p. 143]:
Description:
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 µm, breadth 48 µm.
Paratype: c. 75 µm X 56 µm.
Range: length c. 68-80 µm, breadth 46-66 µm.