Markalius inversus


Classification: Mesozoic -> Heterococcoliths inc sedis -> placoliths inc sedis -> Markalius -> Markalius inversus
Sister taxa: M. inversus, M. vetulus, M. sp.,

Distinguishing features: Markalius with closed central area.


Taxonomy:

Citation: Markalius inversus (Deflandre in Deflandre and Fert, 1954) Bramlette and Martini, 1964
Rank: Species
Basionym: Cyclococcolithus leptoporus inversus Deflandre in Deflandre and Fert, 1954
Synonyms: Cyclococcolithina inversa; Cyclococcolithus inversus; Cyclococcolithus astroporus Stradner 1963; Markalius astroporus;

Farinacci & Howe catalog pages: Cyclococcolithus leptoporus inversus * , Cyclococcolithus astroporus * ,

Distinguishing features: Markalius with closed central area.

Geological Range:
Last occurrence (top): within NP21 zone (32.92-34.44Ma, top in Rupelian stage). Data source: [PRB rough estimate]
First occurrence (base): in mid part of UC14 zone (50% up, 81.2Ma, in Campanian stage). Data source: Burnett 1998, fig 6.4

Plot of occurrence data:

  • (NB There is no histogram as there are no occurrence records for the taxon in the Neptune database) Parent: Markalius

    References:

    Bramlette, M. N. & Martini, E. (1964). The great change in calcareous nannoplankton fossils between the Maestrichtian and Danian. Micropaleontology. 10(2): 291-322. gs

    Deflandre, G. & Fert, C. (1954). Observations sur les coccolithophoridés actuels et fossiles en microscopie ordinaire et électronique. Annales de Paléontologie. 40: 115-176. gs

    Stradner, H. (1963). New contributions to Mesozoic stratigraphy by means of nannofossils. Proceedings of the Sixth World Petroleum Congress. Section 1 Paper 4: 167-183. gs


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    Markalius inversus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 24-7-2019

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