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Praesphaerammina, a new genus of Cenozoic deep-water agglutinated foraminifera from the Carpathian flysch deposits

Domenii publicaţii > Ştiinţele pământului şi planetare + Tipuri publicaţii > Articol în revistã ştiinţificã

Autori: KAMINSKI, M.A. & FILIPESCU, S.

Editorial: Micropaleontology, 46 (4), p.353-359, 2000.

Rezumat:

The genus Praesphaerammina n.sp. is newly described based on our revision of the type species Cystammina subgaleata Vasicek, 1947. The genus differs from the Holocene genus Sphaerammina Cushman, 1910 emend. Loeblich & Tappan, 1964 in possessing a less embracing final chamber and in its interio-areal to areal aperture that lacks any tooth. We also emend the definition of the subfamily Sphaeramminae accordingly. The genus is common in the Eocene of the Carpathian flysch deposits, but the type species Praesphaerammina subgaleata (Vasicek, 1947) is also observed in the Caribbean region where it ranges into the Miocene.

Cuvinte cheie: foraminifera, Praesphaerammina, Paleogene, Carpathians