Zeugrhabdotus

Daughter taxa (time control age-window is: 0-800Ma)
				Zeugrhabdotus embergeri Zeugrhabdotus with relatively broad rim and narrow central area spanned by a spine-bearing bar that narrows at both ends. Broad bright inner cycle in XPL.
				Zeugrhabdotus sigmoides Zeugrhabdotus with relatively narrow rim and wide central area spanned by a spine-bearing bar that narrows at both ends. Narrow bright inner cycle in XPL that broadens where the bar meets the rim.
				Zeugrhabdotus sp. Specimens which cannot be assigned to any established species

Taxonomy:

Distinguishing features: Murolith (loxolith) coccoliths with central area spanned by variably constructed transverse bar. The bar is usually spine bearing. Inner/proximal rim cycle is variably developed and so the LM image may be unicyclic or bicyclic. Delicate lateral bars may also be present but are generally only seen in exceptional preservation.

Farinacci & Howe catalog pages: Zeugrhabdotus + + *

Geological Range:
Last occurrence (top): in upper part of Thanetian Stage (78% up, 56.7Ma, in Thanetian stage). Data source: Total of range of species in this database
First occurrence (base): near base of Tithonian Stage (8% up, 151.5Ma, in Tithonian stage). Data source: Total of range of species in this database

Plot of occurrence data:

• Range-bar - range as quoted above, pink interval top occurs in, green interval base occurs in.
• Triangles indicate an event for which a precise placement has been suggested
• Neptune data: This is a higher taxon page so Neptune data is not plotted. See also: customisable plot Parent: Chiastozygaceae

Zeugrhabdotus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 2-3-2021 Taxon Search: Advanced Search Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=1510 Go to Archive.is to create a permanent copy of this page - citation notes

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