Twin forms in recent benthic foraminifera from the Northern Aegean Sea and Western Black Sea regions (Turkey) Espèces jumelles de foraminiféres de la Mer de Nord Egée et de la Mer Noire (Turquie)

MERİÇ E., Avsar N., GÖRMÜŞ M.

Revue de Paleobiologie, vol.20, no.1, pp.69-75, 2001 (Scopus) identifier

  • Publication Type: Article / Article
  • Volume: 20 Issue: 1
  • Publication Date: 2001
  • Journal Name: Revue de Paleobiologie
  • Journal Indexes: Scopus
  • Page Numbers: pp.69-75
  • Keywords: Northern Aegean Sea, Recent foraminifera, Turkey, Twin-forms, Western Black Sea
  • Ankara University Affiliated: No

Abstract

This study concerns the development of twin and triplet-forms of recent benthic foraminifera observed in the sediments of the northern Aegean Sea and western Black Sea regions, Turkey. These are respectively Adelosina cf. cliarensis (HERON-ALLEN & EARLAND). Quinqueloculina seminula (LINNE), Lobatula lobatula (WALKER & JACOB), Ammonia compacta HOFKER and Ammonia tepida CUSHMAN. The reason of abnormality is ontogenetic, and it occurs accidentally due to delay in the rupture of reproductive cysts.