REVISION ON THE SPECIES OF PSEUDOLACAZINA CAUS 1979 (FORAMINIFERIDA) FROM THE DIFFERENT LOCALITIES OF TURKEY

Year 1998, Volume: 120 Issue: 120, 63 - 68, 01.01.1998

Ercüment Sirel

Abstract

The megalospheric and
microspheric specimens of the one fabularid species were first described and
figured as Fabularia alpani Sirel and Lacazina blumenthali Reichel and Sigal
respectively by Sirel from the llerdiain exotic limestone blocks within the
ophiolitic melange near the village of Pemavut, S of Kars, Eastern Turkey. This
large fabularid species is reexamined on the new material from the foregoing
locality. In the result of this study, megalospheric specimens F.alpani and
microspheric specimens L. blumenthali were renamed as a species of
Pseudolacazina Caus "Pseudolacazina alpani (Sirel)"by the following
generic features: all the chambers of the megalospheric specimens are arranged
in biloculine mode; microspheric specimens start growth with quinqueloculine
chambers cycles reduced biloculine and monoloculine; chambers subdivided by
continuous, longitudinal partitions (as septula) in both generations. On the
other hand, the Anatolian Thanetian species Pseudolacazina oeztemueri (Sirel)
and the Yugoslavian species Pseudolacazina donatae (Drobne) are described and
figured. The specific differences of P. alpani, P.oeztemueri and P. donatae are
discussed with the other species of Pseudolacazina.

Keywords

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References

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