Fig. 5

Light microscope images of nannofossils from the Bid-Zard section southwest of Izeh, Zagros Basin. Taxonomic definition follows Perch-Nielsen (1985). a Pontosphaera multipora (Kamptner 1948 ex Deflandre in Deflandre and Fert 1954) Roth et al. 1970; b Cribrocentrum isabellae Catanzariti, Rio and Fornaciari in Fornaciari et al. 2010; c Cyclicargolithus floridanus (Roth and Hay, in Hay et al. 1967) Bukry 1971; d Helicosphaera euphratis Haq 1966; e Sphenolithus dissimilis Bukry and Percival 1971; f Discoaster deflandrei Bramlette and Riedel 1954; g Coccolithus pelagicus (Wallich 1877) Schiller 1930; h Dictyococcites bisectus (Hay, Mohler and Wade 1966) Bukry and Percival 1971; i Braarudosphaera bigelowii (Gran and Braarud 1935) Deflandre 1947; j Coccolithus formosus (Kamptner 1963) Wise 1973; k Zygrhablithus bijugatus (Deflandre in Deflandre and Fert 1954) Deflandre 1959; l Helicosphaera bramlettei (Müller 1970) Jafar and Martini 1975; m Sphenolithus pseudoradians Bramlette and Wilcoxon 1967; n Sphenolithus praedistentus Bramlette and Wilcoxon 1967; o–p Cribrocentrum reticulatum Perch-Nielsen 1971; q Discoaster barbadiensis Tan Sin Hok 1927; r Discoaster saipanensis Bramlette and Riedel (1954); s Sphenolithus distentus (Martini 1965) Bramlette and Wilcoxon 1967; t Reticulofenestra umbilicus (Levin 1965) Martini and Ritzkowski 1968. Scale bar for (a) to (t): 5 μm