Low Latitude Radiolarian Zonation
30International timescale
Quaternary
Holocene
Meghalayan
Northgrippian
Greenlandian
Pleistocene
Late Pleistocene
Chibanian
Calabrian
Gelasian
Neogene
Pliocene
Piacenzian
Zanclean
Miocene
Messinian
Tortonian
Serravallian
Langhian
Burdigalian
Aquitanian
Paleogene
Oligocene
Chattian
Rupelian
Eocene
Priabonian
Lutetian
Ypresian
Paleocene
Thanetian
Selandian
Low Latitude Radiolarian Zonation
Buccinosphaera invaginata
Collosphaera tuberosa
Stylatractus universus
Amphirhopalum ypsilon
Anthocyrtidium angulare
Pterocanium prismetium
Lychnodictyum audax
Phormostichoartus doliolum
Stichocorys peregrina
Didymocyrtis penultima
Didymocyrtis antepenultima
Diartus petterssoni
Dorcadospyris alata
Calocycletta costata
Stichocorys wolffi
Stichocorys delmontensis
Cyrtocapsella tetrapera
Lychnocanoma elongata
Dorcadospyris ateuchus
Theocyrtis tuberosa
Cryptocarpium ornatum
Calocyclas bandyca
Cryptocarpium azyx
Podocyrtis goetheana
Podocyrtis chalara
Podocyrtis mitra
Podocyrtis ampla
Thyrsocyrtis triacantha
Dictyoprora mongolfieri
Theocotyle cryptocephala
Phormocyrtis striata striata
Buryella clinata
Bekoma bidartensis
Bekoma campechensis
Zone
Buccinosphaera invaginataCollosphaera tuberosaStylatractus universusAmphirhopalum ypsilonAnthocyrtidium angularePterocanium prismetiumLychnodictyum audaxPhormostichoartus doliolumStichocorys peregrinaDidymocyrtis penultimaDidymocyrtis antepenultimaDiartus petterssoniDorcadospyris alataCalocycletta costataStichocorys wolffiStichocorys delmontensisCyrtocapsella tetraperaLychnocanoma elongataDorcadospyris ateuchusTheocyrtis tuberosaCryptocarpium ornatumCalocyclas bandycaCryptocarpium azyxPodocyrtis goetheanaPodocyrtis chalaraPodocyrtis mitraPodocyrtis amplaThyrsocyrtis triacanthaDictyoprora mongolfieriTheocotyle cryptocephalaPhormocyrtis striata striataBuryella clinataBekoma bidartensisBekoma campechensis
