Nannotax3 - ntax_cenozoic - Lithoptychius vertebratoides

Citation: Lithoptychius vertebratoides (Steurbaut and Sztràkos, 2007) Aubry in Aubry et al. 2011

Basionym: Fasciculithus vertebratoides Steurbaut and Sztràkos, 2007

Distinguishing features: Egg-timer-shaped fasciculith of variable size (ca 6 to 8 µm), consisting of a high proximal column and a low and small distal cone forming a cylindrical ring of elements.

Geological Range:
Last occurrence (top): at top of NP4 zone (100% up, 61.5Ma, in Selandian stage). Data source: Monechi et al. 2013, fig. 6
First occurrence (base): in upper part of NP4 zone (70% up, 62Ma, in Danian stage). Data source: Monechi et al. 2013, fig 6

References:

Aubry, M. P., Bord, D. & Rodriguez, O. (2011). New taxa of the Order Discoasterales Hay 1977. Micropaleontology. 57(3): 269-287. gs

Bown, P. R. (2016). Paleocene calcareous nannofossils from Tanzania (TDP sites 19, 27 and 38). Journal of Nannoplankton Research. 36(1): 1-32. gs V O

Monechi, S., Reale, V., Bernaola, G. & Balestra, B. (2013). The Danian/Selandian boundary at Site 1262 (South Atlantic) and in the Tethyan region: Biomagnetostratigraphy, evolutionary trends in fasciculiths and environmental effects of the Latest Danian Event. Marine Micropaleontology. 98(1): 28-40. gs

Perch-Nielsen, K. (1971b). Einige neue Coccolithen aus dem Paläozän der Bucht von Biskaya und dem Eozän der Labrador See. Bulletin of the Geological Society of Denmark. 21: 347-361. gs V O

Steurbaut, E. & Sztrákos, K. (2008). Danian/Selandian boundary criteria and North Sea Basin–Tethys correlations based on calcareous nannofossil and foraminiferal trends in SW France. Marine Micropaleontology. 67: 1-29. gs

Tags	LITHS: nannolith-radiate, circular, cylindrical, CROSS-POLARS: V-prominent, R-prominent,
Metrics	Lith size: 5->9µm; Data source notes: size (width) from OD & illustrated specimens

Lithoptychius vertebratoides

References:

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