Biscutum sp.


Classification: Mesozoic -> Podorhabdales -> Biscutaceae -> Biscutum -> Biscutum sp.
Sister taxa: B. constans, B. ellipticum, B. coronum, B. dekaenelii, B. magnum, B. melaniae, B. arrogans, B. asymmetricum, B. boletum, B. dissimilis, B. zulloii, B. hattneri, B. notaculum, B. virginica, B. gaultensis, B. thurowii, B. davyi, B. depravatus, B. dorsetensis, B. dubium, B. erismatum, B. grande, B. intermedium, B. planum, B. profundum, B. sp.,

Distinguishing features: Specimens not identified to species level


Taxonomy:

Citation: Biscutumsp.

Farinacci & Howe catalog pages:

Distinguishing features: Specimens not identified to species level


Morphology remarks: We are using this category for images of specimens which can be identified to generic level but have not been definitively assigned to a single species.

Geological Range:
Last occurrence (top): within (-Ma, top in "Holocene" stage). Data source:
First occurrence (base): within (-Ma, base in stage). Data source:

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: Biscutum sp., synonyms included - Biscutum sp.; Biscutum sulcata; Paleopontosphaera sp.; Biscutum constans (large); Biscutum sp. cf. ellipticum; Biscutum ? sp. very small, with 2 perforations; Biscutum ? sp. medium-sized, with single perforation; Biscutum sp. cf. coronum;
  • space-time plot :: Samples map :: Parent: Biscutum

    References:

    Bown, P. R., Lees, J. A. & Young, J. R. (2017). On the Cretaceous origin of the Order Syracosphaerales and the genus Syracosphaera. Journal of Micropalaeontology. 36(2): 153-165. gs

    Burnett, J. A. (1998). Upper Cretaceous. In, Bown, P. R. (ed.) Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publication Series. 132-199. 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

    Gale, A. S., Kennedy, W. J., Burnett, J. A., Caron, M. & Kidd, B. E. (1996). The Late Albian to Early Cenomanian succession at Mont Risou, near Rosans (Drôme, SE France): an integrated study (ammonites, inoceramids, planktonic foraminifera, nannofossils, oxygen and carbon isotopes). Cretaceous Research. 17: 515-606. gs

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    Biscutum sp. compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 26-1-2020

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