10.1594/PANGAEA.816237Bukry, DavidDavidBukryPANGAEA1983Sample code/labelDEPTH, sediment/rockEpochSilicoflagellate zoneDictyocha aculeataDictyocha angulataDictyocha asperaDictyocha aspera asperaDictyocha aspera clinata s. ampl.Dictyocha brevispinaDictyocha calida ampliataDictyocha calida calidaDictyocha concavataDictyocha concinnaDictyocha delicataDictyocha delicata var. bisectaDictyocha fibula s. ampl.Dictyocha helixDictyocha longaDictyocha longa var. paxillaDictyocha neonautica var. cocosensisDictyocha ornata africanaDictyocha perfectaDictyocha perlaevis flexatellaDictyocha perlaevis perlaevisDictyocha perlaevisDictyocha perlaevis perlaevis s. ampl.Dictyocha pulchellaDictyocha sp.Dictyocha spp.Dictyocha stapedia aspinosaDictyocha stapedia stapediaDictyocha subaculeataDictyocha tamaraeDictyocha transennaDictyocha variaDictyocha vexativaDistephanus boliviensisDistephanus crux bispinosusDistephanus crux carolaeDistephanus crux crux s. ampl.Distephanus majorDistephanus mesophthalmusDistephanus polyactisDistephanus quinquangellusDistephanus sp.Distephanus speculum bispicatusDistephanus speculum elongatusDistephanus speculum forma coronataDistephanus speculum minutusDistephanus speculum speculumDistephanus speculum tenuisDistephanus spp.Mesocena circulusMesocena diodon nodosaMesocena quadrangulaMesocena sp.Mesocena triodonOctactis pulchra-Specimen countDrilling/drill rigDSDP/ODP/IODP sample designationCounting, silicoflagellatesCalculatedLeg69Glomar ChallengerDeep Sea Drilling Project (DSDP)1979-09-20T00:00:00Supplementary Dataset10.2973/dsdp.proc.69.113.19833974 data pointstext/tab-separated-valuesCreative Commons Attribution 3.0 UnportedDiverse and abundant late Miocene to Pleistocene silicoflagellates at DSDP Site 504 can be correlated by tropical biostratigraphic zones and relative paleotemperature values to eastern tropical Pacific reference site DSDP 503A farther to the west. Early Pliocene assemblages, which were poorly known until now, are present and can be correlated locally between DSDP Holes 504, 503A, and 495, using species events associated with the new Dictyocha pulchella Subzone and Dictyocha angulata Subzone. Silicoflagellate relative paleotemperature values show major warming at 4.7 to 5.0 Ma (Cores 45-48), 3.4 to 3.8 Ma (Cores 32-33), 1.5 to 1.7 Ma (Cores 12-16), and 0.5 to 0.8 Ma (Cores 3-6). Major coolings occurred at 5.0 to 5.1 Ma (Core 51), 3.9 to 4.4 Ma (Cores 38-44), and 1.0 to 1.3 Ma (Cores 8-10). The appearance of Dictyocha longa is proposed to replace the asperoid/fibuloid ratio reversal as the bottom of the Dictyocha fibula Zone, because the non-evolutionary ratio reverses several times in the upper Miocene of Hole 503A, and at least once in Hole 504. Three new Pliocene silicoflagellates are defined: Dictyocha concinna Bukry, n. sp., D. helix Bukry, n. sp., and D. tamarae Bukry, n. sp.Sediment depth is given in mbsf. #0 = recorded after count; #1 or #<1 = probably a reworked occurrence.Supplement to: Bukry, David (1983): Upper Cenozoic silicoflagellates from offshore Ecuador, Deep Sea Drilling Project Site 504. In: Cann, JR; Langseth, MG; Honnorez, J; Von Herzen, RP; White, SM; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 69, 321-342-83.73221.2263