none
Geological Time: Cretaceous Lower Cretaceous
holotype
View of a specimen of Pyrgo undulata Chapman, 1891
The identification is based upon:
, : Chapman, F. (1891). The foraminifera of the Gault of Folkestone, Part I. Journal of the Royal Microscopical Society. [1891]2: 565-575. Plate , Fig.
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