Parhabdolithus liasicus subsp. liasicus


Classification: Mesozoic -> Stephanolithiales -> Parhabdolithaceae -> Parhabdolithus -> Parhabdolithus liasicus -> Parhabdolithus liasicus subsp. liasicus
Sister taxa: P. liasicus subsp. distinctus, P. liasicus subsp. liasicus,

Distinguishing features: Parhabdolithus with very tall spine, height >8 times that of the rim.


Taxonomy:

Citation: Parhabdolithus liasicus subsp. liasicus Deflandre in Grassé, 1952
Rank: Sub-species

Farinacci & Howe catalog pages: Parhabdolithus liasicus liasicus *

Distinguishing features: Parhabdolithus with very tall spine, height >8 times that of the rim.


Size: Coccolith 4-6 µm long (rough estimate from published micrographs)

Search data:
TagsLITHS: murolith, elliptical, CA: process, bar, V-UNITS: V-prominent, R-UNITS: R-prominent, DETAILS: ca_disjunct, rim-bicyclic,
MetricsLith size: 2.5->4µm;
Sources: Bown 1987
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Notes: Range may be more restricted (Pliensbachian) than the subspecies liasicus liasicus.
Last occurrence (top): within NJ6 zone (180.49-181.63Ma, top in Toarcian stage). Data source: Bown & Cooper 1998
First occurrence (base): at base of NJ2 zone (0% up, 199.5Ma, in Hettangian stage). Data source: Bown & Cooper 1998 (fig 4) - zonal event

Plot of occurrence data:

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

    References:

    Bown, P. R. & Cooper, M. K. E. (1998). Jurassic. In, Bown, P. R. (ed.) Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publication Series. 34-85. gs :: ::

    Bown, P. R. (1987). Taxonomy, evolution, and biostratigraphy of Late Triassic-Early Jurassic calcareous nannofossils. Special Papers in Palaeontology. 38: 1-118. gs :: ::

    Crux, J. A. (1987). Early Jurassic calcareous nannofossil biostratigraphic events. Newsletters on Stratigraphy. 17: 79-100. gs :: ::

    Deflandre, G. (1952). Classe des Coccolithophoridés. (Coccolithophoridae. Lohmann, 1902). In, Grassé, P. P. (ed.) Traité de Zoologie. Masson, Paris 439-470. gs :: ::

    Prins, B. (1969). Evolution and stratigraphy of cocolithinids from the Lower and Middle Lias. In, Bronnimann, P. & Renz, H. H. (eds) Proceedings of the First International Conference on Planktonic Microfossils, Geneva 1967. E. J. Brill, Leiden 547-558. gs :: ::


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    Parhabdolithus liasicus subsp. liasicus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 14-7-2020

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    Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=10859 Go to Archive.is to create a permanent copy of this page - citation notes



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