Calculites additus


Classification: Mesozoic -> Holococcoliths -> Common genera -> Calculites -> Calculites additus
Sister taxa: C. favosus, C. anfractus, C. axosuturalis, C. obscurus, C. ovalis, C. rosalyniae, C. additus, C. cenomanicus, C. cyclops, C. juliae, C. maghredaswampensis, C. paulus, C. percernis, C. proscissus, C. turonicus, C. sarstedtensis, C. suturus, C. sp.,

Distinguishing features: Formed of five bocks, with pores and central spine


Taxonomy:

Citation: Calculites additus (Wind & Wise in Wise & Wind, 1977) Perch-Nielsen, 1984
Rank: Species
Basionym: Phanulithus additus Wind & Wise in Wise & Wind, 1977

Farinacci & Howe catalog pages: Phanulithus additus *

Distinguishing features: Formed of five bocks, with pores and central spine

Search data:
TagsLITHS: holococcolith, elliptical, hollow, CA: process, closed, R-UNITS: R-prominent, DETAILS: ca_conjunct, rim-unicyclic,
MetricsLith size: 5->7µm; Segments: 5->5;
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 Maastrichtian Stage (66.04-72.05Ma, top in Maastrichtian stage). Data source: Burnett 1998
First occurrence (base): within Campanian Stage (72.05-83.64Ma, base in Campanian stage). Data source: Burnett 1998

Plot of occurrence data:

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

    References:

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

    Perch-Nielsen, K. (1984b). Validation of new combinations. INA Newsletter. 6(1): 42-46. gs :: view :: open

    Wise, S. W. & Wind, F. H. (1977). Mesozoic and Cenozoic calcareous nannofossils recovered by DSDP Leg 36 drilling on the Falkland Plateau, south-west Atlantic sector of the Southern Ocean. Initial Reports of the Deep Sea Drilling Project. 36(269-491): -. gs :: view :: open

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    Calculites additus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 3-6-2020

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    Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=10164 Go to Archive.is to create a permanent copy of this page - citation notes
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