WebUpper Oligocene, NP24 25 Sphenolithus distentus Sphenolithus ciperoensis zones. These zones are identified. by the co-occurrence of Helicosphaera recta (Fig. 7.15) and. … WebSphenolithus ciperoensis, because of the gradual evolution of its members. Successful separation of species in this lineage is critical for accurately dating relative age of mid- and upper-Oligocene nannofossil sediments. Length and taper of the apical spine, along with width of the proximal shield, were

(PDF) The Eocene-Oligocene transition in Pindos Foreland

WebSphenolithus ciperoensis Sphenolithus distentus Sphenolithus predistentus Reticulofenestra hillae Cyclococcolithina formosa Coccolithus subdistichus Discoaster … WebDer Vergleich von Vergesellschaftungen planktonischer Foraminiferen, Nannofossilien und Großforaminiferen zeigt, daß hochentwickelte Formen von Miogypsina (Miogypsinoides) complanata sowohl in der Nannoplankton-Zone Sphenolithus ciperoensis (NP 25) als auch in der Plankton-Zone Globigerina ciperoensis (Teile der Zonen N 3 und N 4 nach BLOW ... daz web lothian

SAV - Časopisy

WebDefinition: LO of Helicosphaera recta and/or Sphenolithus ciperoensis to the FO of Discoaster druggii Authors: BRAMLETTE & WILCOXON (1967), emend. MARTINI & … Web(N3) NP25 Sphenolithus ciperoensis Zone .. ,. C: ::, 0. las! S.distentus ... (such as Scyphosphaera and some species of Sphenolithus and H elicopontosphaera). Because … WebStratigraphic studies, based on lithology, diatoms, and mollusks, have suggested different chronostratigraphic placements for formations in the Pisco Basin. This study focusses on … gear shift logo