Description
Site 765 contains a sequence of tropical, middle Miocene to Holocene dinoflagellate cysts. These diverse assemblages are characterized by abundant Polysphaeridium zoharyi and Spiniferites bulloideus. Abundances of Impagidinium spp. and Nematosphaeridium spp. reflect the shelf-to-slope origin of the assemblages. One new genus, Blysmatodinium, and two new species, Nematosphaeridium (?) wrennii sp. nov. and Blysmatodinium argoi, are described.
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Metrics Over Time
Publication Details
Subfield
Ecology
Field
Environmental Science
Domain
Physical Sciences
Confidence Score
95%
Source
Open Alex
Keywords
Event labelEpochSample code/labelBatiacasphaera micropapillataImpagidinium aculeatumPolysphaeridium zoharyiSystematophora placacanthaImpagidinium paradoxumImpagidinium patulumOperculodinium janducheneiImpagidinium strialatumOperculodinium centrocarpumOperculodinium israelianumPyxidinopsis sp.Spiniferites bulloideusSpiniferites hyperacanthusSpiniferites ramosusNematosphaeropsis lemniscataTectatodinium sp.Achomosphaera sp.Impletosphaeridium spp.Spiniferites mirabilisDapsilidinium pastielsiiHystrichokolpoma rigaudiaeOperculodinium echigoenseSpiniferites rubinusLingulodinium machaerophorumOperculodinium longispinigerumMelitasphaeridium choanophorumTuberculodinium vancampoaeSpiniferites membranaceusImpagidinium sphaericumBlysmatodinium argoiNematosphaeropsis wrenniiSelenopemphix nephroidesImpagidinium sp.Multispinula quantaStelladinium reidiiVotadinium calvumDinoflagellate cystDrilling/drill rigDSDP/ODP/IODP sample designationCounting >10 µm fractionLeg123Joides ResolutionOcean Drilling Program (ODP)