We emend the definition of the foraminiferal genus Falsogaudryinella Bartenstein, 1977 based on
observations of the type species, F. tealbyensis from the Barremian Lower Tealby Clay of
Lincolnshire, U.K. The genus was described by Loeblich & Tappan (1987) as having initial triserial
coiling which reduces to biserial and finally uniserial. However, topotype specimens display high
trochospiral coiling in the microsphaeric generation, with at least four chambers in the initial
whorl. The genus, therefore, does not belong in the family Verneuilinidae, but must be transferred
to the Prolixoplectidae. The wall is solid, non-canaliculate. The connections between chambers are
in the form of tubes that extend from the basal part of the chamber lumina toward a terminal
aperture. This tubular connection is partially separated from the main part of the chamber lumina
by a septum. The presence of this tubular connection in F. tealbyensis is closely analogous to that
observed in the type species of Uvigerinammina Majzon, 1943. The two genera, therefore, are
separated mainly on the basis of cement type, with Falsogaudryinella possessing calcareous cement
and Uvigerinammina organic cement.
We illustrate five species of Falsogaudryinella from the Barremian of Lincolnshire, the U.K.
sector of the Central North Sea, and from the Barremian and the Albian of Romania (F. neagui
Bartenstein, 1981, F. praemoesiana n.sp. F. tealbyensis (Bartenstein, 1956), F. xenogena n.sp. and F.
moesiana (Neagu, 1966)). Our investigations reveal that upper Hauterivian to Barremian specimens
from the North Sea that have been previously regarded as F. moesiana (e.g. King et al., 1989) in fact
belong in a new species, Falsogaudryinella praemoesiana n.sp. A second new species, Falsogaudryinella
xenogena n.sp. is described from the Barremian of the Central North Sea. Evolution within the mid-
Cretaceous Falsogaudryinella group appears to progress by reduction of the terminal uniserial part,
since the coiling in the stratigraphically youngest form (F. moesiana) is predominantly triserial. Our
interpretations of the phylogeny of the Cretaceous Falsogaudryinella and Uvigerinammina lineages
are presented
