Parhabdolithus marthae


Classification: ntax_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.


Taxonomy:

Citation: Parhabdolithus marthae Deflandre in Deflandre & Fert, 1954
Rank: Species

Farinacci & Howe catalog pages: P. marthae *

Distinguishing features: Parhabdolithus with very broad, tapering spine.

Search data:
TagsLITHS: murolith, elliptical, CA: ca_disjunct, process, bar, closed, CROSS-POLARS: rim-bicyclic, V-prominent, R-prominent,
MetricsLith size: 5->6µm;
Data source notes: Bown 1987
The morphological data given here can be used on the advanced search page. See also these notes

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:

References:

Barnard, T. & Hay, W. W. (1974). On Jurassic coccoliths: A tentative zonation of the Jurassic of Southern England and North France. Eclogae Geologicae Helvetiae. 67(3): 563-585. gs V O

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

Bown, P. R., Cooper, M. K. E. & Lord, A. R. (1988). A calcareous nannofossil biozonation scheme for the early to mid Mesozoic. Newsletters on Stratigraphy. 20: 91-114. gs

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

Grün, W. & Zweili, F. (1980). Das kalkige Nannoplankton der Dogger-Malm-Grenze im Berner Jura bei Liesberg (Schweiz). Jahrbuch der Geologischen Bundesanstalt. 123: 231-341. gs V O

Hamilton, G. B. (1977). Early Jurassic calcareous nannofossils from Portugal and their biostratigraphic use. Eclogae Geologicae Helvetiae. 70: 575-597. gs V O

Medd, A. W. (1979). The Upper Jurassic coccoliths from the Haddenham and Gamlingay boreholes (Cambridgeshire, England). Eclogae Geologicae Helvetiae. 72: 19-109. gs V O

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

Rood, A. P., Hay, W. W. & Barnard, T. (1973). Electron microscope studies of Lower and Middle Jurassic coccoliths. Eclogae Geologicae Helvetiae. 66: 365-382. gs V O


nannotaxlogo400px

Parhabdolithus marthae compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 21-1-2021

Taxon Search:
Advanced Search

Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=10860 Go to Archive.is to create a permanent copy of this page - citation notes



Comments (1)

Sort By
Page 1 of 1
 
Gravatar
Kevin Cooper (UK)
I think the stratigraphic range is wrong for this species you have assign it to NJ3 zoned, based on Bown & Cooper 1998. However in that publication it range is give as NJ2a subzone restricted significantly older
Gravatar
Jeremy Young (UCL, UK)
Thanks Kevin - you are of course quite right and I have now corrected this. Please do keep pointing out errors!
Page 1 of 1
 

Add Comment

* Required information
1000
Captcha Image
Powered by Commentics