From M.K. BouDagher-Fadel "Biostratigraphic andGeological Signifi BouDagher-Fadel"Biostratigraphic M.K. From Chart 5.3 The range of key PaleogenespeciesfortheTruncorotaloididae Chart 5.3Therangeofkey 65.5 55.8 33.9 23.0 Age (Ma) Period, Period, Paleocene Eocene Oligocene Epoch, Stage Early Middle Late Early Middle Late Early Late Danian Selandian Thanetian Ypresian Lutetian Bartonian Priabonian Rupelian Chattian P11 P12 P18 P20 P15 P10 P13 P14 P16 P17 P19 P21 P22 P9 P6 P1 P8 P5 P7 P2 P3 P4 P 0 b b Planktonic Zonation a c a c b α b b a a a a a a b b a a b b b a b a a a a b b a a b a a b b a b b b b a b Praemurica pseudoinconstans Praemurica taurica Praemuricae inconstans Praemurica uncinata Praemurica praecursoria Acarinina praeaequa Acarinina praeangulata Praemurica carinata Igorina pusilla Acarinina hansbollii Igorina convexa Morozovella angulata Acarinina subsphaerica Morozovella conicotruncata Morozovella aequa Morozovella pasionensis Igorina albeari cance of Planktonic Foraminifera", Elsevier, Amsterdam, 2012, Amsterdam, Elsevier, Foraminifera", Planktonic cance of Igorina tadjikistanensis Igorina laevigata Acarinina nitida Morozovella velascoensis Acarinina intermedia Acarinina chascanona Acarinina aquiensis Acarinina acarinata Acarinina sibaiyaensis Igorina trichotrocha Acarinina mckannai Morozovella parva Morozovella acuta Morozovella occlusa Acarinina esnaensis Acarinina coalingensis Acarinina primitiva Acarinina strabocella Acarinina triplex Acarinina pseudotopilensis Truncorotaloididae Acarinina wilcoxensis Acarinina nicoli 289p Acarinina soldadoensis Morozovella apanthesma Morozovella tholiformis Morozovella lacerti Morozovella finchi Morozovella edgari Acarinina angulosa Acarinina africana Morozovella subbotinae Morozovella gracilis Igorina broedermanni Acarinina esnehensis Morozovella quetra Morozovella dolabrata Acarinina berggreni Morozovella marginodentata Morozovella lensiformis Morozovella formosa Acarinina gravelli Acarinina senni Acarinina rugosoaculeata Morozovella crater Morozovella aragonensis Acarinina bulbrooki Acarinina appressocamerata Acarinina camerata Acarinina pentacamerata Acarinina decepta Acarinina cuneicamerata Truncorotaloides praetopilensis Acarinina matthewsae Acarinina collactea Acarinina rotundimarginata Morozovella spinulosa Acarinina acceleratoria Acarinina aspensis Morozovella caucasica Morozovelloides bandyi Globigerapsis index Igorina anapetes Truncorotaloides haynesi Truncorotaloides libyaensis Morozovelloides crassatus Morozovelloides coronatus Acarinina spinuloinflata Morozovella lehneri Truncorotaloides piparoensis Globigerapsis kugleri Testacarinata inconspicua Testacarinata aculeata Truncorotaloides rohri Truncorotaloides mayoensis Truncorotaloides topilensis.