Contribution
New observations on Paleocene holococcoliths
Varol, Osman
Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen Band 315 Heft 2 (2025), p. 109 - 141
69 références bibliographiques
publié: Aug 12, 2025
manuscrit accepté: Jun 2, 2025
manuscrit reçu: Feb 15, 2025
DOI: 10.1127/njgpa/1269
ArtNo. ESP155031502001, Prix: 29.00 €
Abstract
Selected Paleocene holococcoliths were studied using mobile mounts, enabling detailed analysis of their structural units and optical properties. This study establishes five new holococcolith genera – Aplofoteino, Didimospyrgos, Diorofostoichos, Karoulilithos, and Perideraiolithos – along with five new species: Aplofoteino kokaksuensis, Didimospyrgos inciae, Diorofostoichos calisiriae, Karoulilithos ayseguliae, and Perideraiolithos seherae. Additionally, four new combinations are introduced: Diorofostoichos emrei, Octolithus duocavus, Octolithus jawzii, and Perideraiolithos ponticus. The study also briefly discusses the taxonomic and paleoenvironmental challenges of holococcoliths. Finally, the stratigraphic ranges of the newly described species and revised taxa are presented.
Mots-clefs
Calcareous plankton • phytoplankton • stratigraphy • taxonomy