Parhabdolithus marthae
Classification: Mesozoic -> Stephanolithiales -> Parhabdolithaceae -> Parhabdolithus -> Parhabdolithus marthae
Sister taxa: P. liasicus, P. marthae, P. robustus, P. stubbingsii, P. sp.,
Distinguishing features: Parhabdolithus with very broad, tapering spine.
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Taxonomy:
Citation: Parhabdolithus marthae Deflandre in Deflandre & Fert, 1954Rank: Species
Farinacci & Howe catalog pages: Parhabdolithus marthae *
Distinguishing features: Parhabdolithus with very broad, tapering spine.
Geological Range:
Last occurrence (top): at top of NJ2A subzone (100% up, 196.5Ma, in Sinemurian stage). Data source: Bown & Cooper 1998 (fig 4) - zonal event
First occurrence (base): within NJ2A subzone (196.46-199.50Ma, base in Hettangian stage). Data source: Bown & Cooper 1998
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
- (NB There is no histogram as there are no occurrence records for the taxon in the Neptune database) Parent: Parhabdolithus
References:Bown, P.R. & Cooper, M.K.E., (1998). Jurassic. In: Bown, P.R. (Editor), Calcareous nannofossil biostratigraphy. British Micropalaeontological Society Publication Series. Chapman & Hall, pp. 34-85.
Deflandre, G. & Fert, C., (1954). Observations sur les coccolithophoridés actuels et fossiles en microscopie ordinaire et électronique. Annales de Paléontologie, 40: 115-176.
