Reticulofenestra perplexa


Classification: Coccolithophores -> Isochrysidales -> Noelaerhabdaceae -> Reticulofenestra -> R. bisecta group -> Reticulofenestra perplexa
Sister taxa: R. bisecta, R. filewiczii, R. stavensis, R. magniscutum, R. perplexa, R. producta, D. sp.,

Taxonomy:

Citation: Reticulofenestra perplexa (Burns 1975) Wise1983
Rank: Species
Basionym: Dictyococcites perplexa Burns 1975
Variants:
Synonyms:

Distinguishing features: Medium sized (5-8µm) with closed central area

Farinacci & Howe catalog pages: Dictyococcites perplexa * , Dictyococcites antarcticus * , Coccolithus gelidus *


Size: 5-7µm - NB measurements in Burns1975 are incorrect, see Wise 1983

Ecology & Biogeography: A characteristic taxon of the Oligo-Miocene in the Southern Ocean.

See also: Reticulofenestra pseudoumbilicus - coeval temperate to tropical species, typically with open central area.;

Search data:
TagsLITHS: placolith, elliptical, RIM: inner-tube-broad, CA: Placoliths: closed-----, grill, closed,
CSPH: spherical, equant, monomorphic, V-UNITS: none, R-UNITS: all, c-str, distal shield, prox shield, tube, R-prominent, DETAILS: ca_conjunct, isogyres kinked, isogyres oblique, rim-unicyclic,
MetricsLith size: 5->8µm;
Sources:
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within Miocene Epoch (5.33-23.03Ma, top in Messinian stage). Data source: Wei & Wise 1990
First occurrence (base): within Early Oligocene Sub-Epoch (28.09-33.89Ma, base in Rupelian stage). Data source: Haq 1976

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: Reticulofenestra perplexa, synonyms included - Dictyococcites antarcticus; Dictyococcites sp. (7 microns)(R. perplexa); Reticulofenestra antarctica; Reticulofenestra galida; Reticulofenestra gelida; Reticulofenestra perplexa; Reticulofenestra productella (5-6 µm); Reticulofenestra productella (6-7 µm);
  • space-time plot :: Samples map :: Parent: R. bisecta group

    References:

    Backman, J. (1978). Late Miocene - Early Pliocene nannofossil biochronology and biogeography in the Vera Basin, SE Spain. Stockholm Contributions in Geology. 32: 93-114. gs :: ::

    Burns, D. A. (1975). Distribution, abundance, and preservation of nannofossils in Eocene to Recent Antarctic sediments. New Zealand Journal of Geology and Geophysics. 18(4): 583-595. gs :: ::

    Driever, B. W. M. (1988b). Calcareous nannofossil biostratigraphy and paleoenvironmental interpretation of the Mediterranean Pliocene. Utrecht Micropaleontological Bulletin. 36: 245-. gs :: ::

    Geitzenauer, K. R. & Huddlestun, P. (1972). An upper-Pliocene-Pleistocene calcareous nannoplankton flora from a subantarctic Pacific dep-sea core. Micropaleontology. 18(4): 405-409. gs :: ::

    Haq, B. U. (1976). Coccoliths in cores from the Bellinghausen abyssal plain and Antarctic continental rise (DSDP Leg 35). Initial Reports of the Deep Sea Drilling Project. 35: 557-567. gs :: view :: open

    Wei, W. & Wise, S. W. (1990b). Middle Eocene to Pleistocene calcareous nannofossils recovered by Ocean Drilling Program leg 113 in the Weddell Sea. Proceedings of the Ocean Drilling Program, Scientific Results. 113: 639-666. gs :: view :: open

    Wei, W. & Wise, S. W. (1992a). Oligocene-Pleistocene calcareous nannofossils from Southern Ocean Sites 747, 748, and 751. Proceedings of the Ocean Drilling Program, Scientific Results. 120: 509-521. gs :: view :: open

    Wei, W. & Wise, S. W. (1992b). Selected Neogene calcareous nannofossil index taxa of the  from Southern Ocean: Biochronology, biometrics and paleoceanography. Proceedings of the Ocean Drilling Program, Scientific Results. 120: 523-537. gs :: ::

    Wise, S. W. (1983). Mesozoic and Cenozoic calcareous nannofossils recovered by DSDP Leg 71 in the Falkland Plateau region, Southwest Atlantic Ocean. Initial Reports of the Deep Sea Drilling Project. 71: 481-550. gs :: view :: open


    nannotaxlogo400px

    Reticulofenestra perplexa compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 4-6-2020

    Taxon Search:
    Advanced Search

    Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=1180 Go to Archive.is to create a permanent copy of this page - citation notes



    Comments (0)

    No comments yet on this page. Please do add comments if you spot any problems, or have information to share

    Add Comment

    * Required information
    1000
    Captcha Image
    Powered by Commentics