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Table 5 (continued).
 
Epoch Zones Low Latitude Radiolarian Events
Early Eocene
Buryella clinata Tm Pterocodon ampla; Tm Bekoma bidartensis; Tm Buryella tetradica; Tm Thyrsocyrtis tarsipes
Bm Lithocyclia ocellus group; Bm Thyrsocyrtis tensa; Theocotylissa alpha -> Theocotylissa fiscus
Bm Calocyclas hispida
Bm Spongatractus balbis; Bm Lamptonium sanfilippoae; Bm Theocotyle nigriniae; Bm Thyrsocyrtis hirsuta
Pterocodon ? anteclinata -> Buryella clinata
Bekoma bidartensis Bm Theocotylissa alpha
Bm Lamptonium fabaeforme chaunothorax
Bm Pterocodon ? anteclinata; Bm Lophocyrtis jacchia
Bm Calocycloma castum; Lamptonium pennatum -> Lamptonium fabaeforme fabaeforme
Paleocene
Bm Podocyrtis papalis
Tm Bekoma campechensis
Bm Bekoma bidartensis
Bekoma campechensis Bm Phormocyrtis cubensis
Tm Buryella pentadica
Bm Pterocodon ampla
Bm Bekoma campechensis
unzoned Bm Lamptonium pennatum; Bm Buryella pentadica
Bm Buryella tetradica
Bm Thyrsocyrtis tarsipes

Note: Bold entries indicate zonal boundary markers.

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