Pontosphaera discopora


Classification: Coccolithophores -> Zygodiscales -> Pontosphaeraceae -> Pontosphaera -> Pontosphaera discopora
Sister taxa: P. multipora, P. discopora, P. distincta, P. enormis, P. desuetoidea, P. geminipora, P. longiforaminis, P. megapachydisca, P. veta, P. syracusana, P. alta, P. panarium, P. versa, P. wallacei, P. latoculata, P. sp.A, P. formosa, > >>

Taxonomy:

Citation: Pontosphaera discopora Schiller, 1925
Rank: Species
Synonyms: Discolithina callosa Martini 1969 [my identification - JRY 2016]
Pontosphaera callosa (Martini 1969) Varol 1982 
Pontosphaera messinae
Bartolini (1970) [my identification - JRY 2015]
Pontosphaera pacifica Burns (1973) [my identification - JRY 2015]

Distinguishing features: Rim elevated, 3 or more cycles of pores.

Farinacci & Howe catalog pages: Pontosphaera discopora + * , Pontosphaera messinae + * , Pontosphaera pacifica * , Discolithina callosa *


Morphology remarks: Coccoliths similar to BCs of Scyphosphaera apsteinii BCs, but usually thicker and rim more clearly elevated

Search data:
TagsLITHS: murolith, elliptical, RIM: outer wall acw-imbricate, CA: pores,
CSPH: spherical, equant, monomorphic, V-UNITS: outer-rim, V-prominent, R-UNITS: c-str, inner-rim, px-plate, R-prominent, DETAILS: ca_conjunct, rim-bicyclic, isogyres oblique, isogyres separated,
MetricsLith size: 5->10µm; Coccosphere size: 15->30µm; Liths per sphere: 30->60
Sources: lith & csph size from illustrated specimens 1993; lith numbers from Yang & Wei 2003, range inferred from single estimate
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): Extant Data source: present in the plankton (Young et al. 2003)
First occurrence (base): within Miocene Epoch (5.33-23.03Ma, base in Aquitanian stage). Data source: [JRY rough estimate]

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: Pontosphaera discopora, synonyms included - Discolithina callosa; Discolithina discopora; Discosphaera pacifica; Pontosphaera callosa; Pontosphaera discopora; Pontosphaera messinae; Pontosphaera pacifica;
  • space-time plot :: Samples map :: Parent: Pontosphaera

    References:

    Bartolini, C. (1970). Coccoliths from sediments of the western Mediterranean. Micropaleontology. 16(2): 129-154. gs :: ::

    Burns, D. A. (1973). Structural analysis of flanged coccoliths in sediments from the South West Pacific Ocean. Revista Española de Micropaleontología. 5(1): 147-160. gs :: ::

    Frada, M., Percopo, I., Young, J. R., Zingone, A., de Vargas, C. & Probert, I. (2009). First observations of heterococcolithophore-holococcolithophore life cycle combinations in the family Pontosphaeraceae (Calcihaptophycideae, Haptophyta). Marine Micropaleontology. 71(1): 20-27. gs :: ::

    Martini, E. (1969c). Nannoplankton aus dem Miozän von Gabon (Westafrika). Neues Jahrbuch für Geologie und Paläontologie Abhandlungen. 132: 283-300. gs :: ::

    Perch-Nielsen, K. (1972b). Remarks on Late Cretaceous to Pleistocene coccoliths from the North Atlantic. Initial Reports of the Deep Sea Drilling Project. 12: 1003-1069. gs :: view :: open

    Perch-Nielsen, K. (1977a). Albian to Pleistocene calcareous nannofossils from the Western South Atlantic, DSDP Leg 39. Initial Reports of the Deep Sea Drilling Project. 39: 699-823. gs :: view :: open

    Schiller, J. (1925). Die planktonischen Vegetationen des adriatischen Meeres. A. Die Coccolithophoriden-Vegetation in den Jahren 1911-14. Archiv für Protistenkunde. 51: 1-130. gs :: ::

    Varol, O. (1982). Calcareous nannofossils from the Antalya Basin, Turkey. Neues Jahrbuch für Geologie und Paläontologie Monatshefte. 4: 244-256. gs :: ::

    Young, J. R. (1998). Neogene. In, Bown, P. R. (ed.) Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publication Series. 225-265. gs :: ::

    Young, J. R., Geisen, M., Cros, L., Kleijne, A., Probert, I. & Ostergaard, J. B. (2003). A guide to extant coccolithophore taxonomy. Journal of Nannoplankton Research, Special Issue. 1: 1-132. gs :: view :: open


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    Pontosphaera discopora compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 5-6-2020

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    Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=1068 Go to Archive.is to create a permanent copy of this page - citation notes



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