Ethmorhabdus hauterivianus


Classification: Mesozoic -> Podorhabdales -> Axopodorhabdaceae -> Ethmorhabdus -> Ethmorhabdus hauterivianus
Sister taxa: E. anglicus, E. crucifer, E. gallicus, E. hauterivianus, E. sp.,

Distinguishing features: Large (8-12 µm) Ethmorhabdus with finely perforate net, outline often irregular, spine absent


Taxonomy:

Citation: Ethmorhabdus hauterivianus (Black, 1971) Applegate et al. in Covington & Wise, 1987
Rank: Species
Basionym: Cribrosphaera hauteriviana Black, 1971
Synonyms: Cribrosphaerella hauteriviana
Notes & discussion: E. hauterivianus is similar to E. gallicus but Early Cretaceous rather than Late Jurassic in age - it also appers to be somewhat larger, to have a less regular shape and finer, less regular, pores.

Farinacci & Howe catalog pages: Cribrosphaera hauteriviana *

Distinguishing features: Large (8-12 µm) Ethmorhabdus with finely perforate net, outline often irregular, spine absent

Search data:
TagsLITHS: placolith, elliptical, CA: grill, plate, closed, V-UNITS: V-prominent, R-UNITS: R-prominent, DETAILS: ca_disjunct, rim-bicyclic,
MetricsLith size: 8->12µm;
Sources: original description & illustrated specimens
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within Barremian Stage (126.30-130.77Ma, top in Barremian stage). Data source: Bown et al. 1998
First occurrence (base): within Berriasian Stage (139.39-145.01Ma, base in Berriasian stage). Data source: Bown et al. 1998

Plot of occurrence data:

  • Histogram - Neptune occurrence data from DSDP and ODP proceedings. Pale shading <50 samples in time bin. Interpret with caution & read these notes
  • Note to users in China - the diagram may not plot unless you use a VPN since I use google services on the website. If this is a problem please contact me 谢谢.
  • Taxon plotted: Ethmorhabdus hauterivianus, synonyms included - Cribrosphaerella hauteriviana; Ethmorhabdus hauterivianus;
  • space-time plot :: Samples map :: Parent: Ethmorhabdus

    References:

    Applegate, J. L. & Bergen, J. A. (1988). Cretaceous calcareous nannofossil biostratigraphy of sediments recovered from the Galicia Margin, ODP Leg 103. Proceedings of the Ocean Drilling Program, Scientific Results. 103: 293-348. gs :: view :: open

    Black, M. (1971). Coccoliths of the Speeton Clay and Sutterby Marl. Proceedings of the Yorkshire Geological Society. 38: 381-424. gs :: ::

    Bown, P. R., Rutledge, D. C., Crux, J. A. & Gallagher, L. T. (1998). Early Cretaceous. In, Bown, P. R. (ed.) Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publication Series. 86-131. gs :: ::

    Covington, J. M. & Wise, S. W. (1987). Calcareous nannofossil biostratigraphy of a Lower Cretaceous deep-sea fan complex: Deep Sea Drilling Project Leg 93 Site 603, lower continental rise off Cape Hatteras. Initial Reports of the Deep Sea Drilling Project. 93: 617-660. gs :: view :: open

    de Kaenel, E. & Bergen, J. A. (1996). Mesozoic calcareous nannofossil biostratigraphy from sites 897, 899, and 901, Iberia Abyssal Plain: New biostratigraphic evidence. Proceedings of the Ocean Drilling Program, Scientific Results. 149: 27-59. gs :: view :: open

    Jeremiah, J. (2001). A Lower Cretaceous nannofossil zonation for the North Sea Basin. Journal of Micropalaeontology. 20: 45-80. gs :: view :: open

    Wind, F. H. & Cepek, P. (1979). Lower Cretaceous calcareous nannoplankton from DSDP Hole 397A (northwest African Margin). Initial Reports of the Deep Sea Drilling Project. 47A: 221-235. gs :: view :: open


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    Ethmorhabdus hauterivianus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 9-7-2020

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    Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=10443 Go to Archive.is to create a permanent copy of this page - citation notes



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