Sphenolithus pseudoheteromorphus
Set number: 968
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10µm
Sphenolithus pseudoheteromorphus Fornaciari & Agnini, 2009
Sphenolith having an asymmetrical three-bladed apical spine. One or two segments from lateral cycle extent upward-outward.
Sphenolithus pseudoheteromorphus differ from Sphenolithus heteromorphus Deflandre, 1953 by having an asymmetrical apical spine.
Deflandre, G., 1953. Hétérogénéité intrinsèque et pluralité des éleménts dans les coccolithes actuels et fossiles. Comptes Rendus Hebdomadaires des Séances de l'Académie des Sciences, Paris 237, 1785-1787.
Fornaciari, E., Agnini, C., 2009. Taxonomic note: Sphenolithus pseudoheteromorphus, a new Miocene calcareous nannofossil species from the equatorial Indian Ocean. Journal of Nannoplankton Research 30(2), 97-101.
Holotype
Sphenolithus pseudoheteromorphus
Fornaciari & Agnini, 2009
Early Miocene
ODP Leg 115, Site714, Mascarene Plateau, western equatorial Indian Ocean