Reticulofenestra producta


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

Taxonomy:

Citation: Reticulofenestra producta (Kamptner 1963) Varol 1989
Rank: Species
Basionym: Ellipsoplacolithus productus Kamptner 1963
Synonyms:
Notes & discussion: Invalid when originally described as the genus Ellipsoplacolithus was invalid, subsequently validated as Actinosphaera producta Noel, 1965b, according to Loeblich & Tappan (1968). 
The combination Reticulofenestra producta was also proposed by Wei & Thierstein 1991 and this authorship was previously used here, but the recombination by Varol 1989 has priority.

Distinguishing features: Small (<5µm) with closed central area

Farinacci & Howe catalog pages: Crenalithus productellus * , Ellipsoplacolithus productus * , Coccolithus taganus *


Morphology remarks: As noted by Wei & Thierstein (1991) this can be regarded as a smaller variant of R. perplexa. At high latitudes these morphotypes with closed central areas are often dominant. It is not clear if there is any value in spearating them from forms with open central areas at low latitudes. Also discussed in Young 1990.

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: 3->5µm;
Sources:
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within Early Pleistocene Sub-Epoch (0.78-2.59Ma, top in Calabrian stage). Data source: original description
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: Reticulofenestra producta, synonyms included - Dictyococcites productus; Ellipsoplacolithus productus; Gephyrocapsa producta; Reticulofenestra producta; Reticulofenestra productella; Reticulofenestra tagana; Reticulofenestra productella (2-3 µm); Reticulofenestra productella (3-4 µm); Reticulofenestra productella (4-5 µm);
  • space-time plot :: Samples map :: Parent: R. bisecta group

    References:

    Backman, J. (1980). Miocene-Pliocene nannofossils and sedimentation rates in the Hatton-Rockall Basin, NE Atlantic Ocean. Stockholm Contributions in Geology. 36: 1-91. gs :: ::

    Bukry, D. (1975). Coccolith and silicoflagellate stratigraphy, northwestern Pacific Ocean, Deep Sea Drilling Project Leg 32. Initial Reports of the Deep Sea Drilling Project. 32: 677-701. gs :: view :: open

    de Kaenel, E. & Villa, G. (1996). Oligocene-Miocene calcareous nannofossil biostratigraphy and paleoeecology from the Iberian Abyssal Plain. Proceedings of the Ocean Drilling Program, Scientific Results. 149: 79-145. gs :: view :: open

    Fonseca, B. (1976). Coccolithus taganus, nouvelle espece de Coccolithopohride du Miocene de Lisbonne. Boletim de Sociedade Geologica de Portugal. 20: 29-32. gs :: ::

    Kamptner, E. (1963). Coccolithineen-Skelettreste aus Tiefseeablagerungen des Pazifischen Ozeans. Annalen des Naturhistorischen Museums in Wien. 66: 139-204. gs :: ::

    Pujos, A. (1985). Cenozoic nannofossils, central equatorial Pacific, Deep Sea Drilling Project Leg 85. Initial Reports of the Deep Sea Drilling Project. 85: 581-607. gs :: view :: open

    Shepherd, C. L. & Kulhanek, D. K. (2016). Eocene nannofossil biostratigraphy of the mid-Waipara River section, Canterbury Basin, New Zealand. Journal of Nannoplankton Research. 26(1): 33-59. gs :: view :: open

    Varol, O. (1989). Calcareous nannofossil study of the central and western Solomon Islands. Circum-Pacific Council for Energy and Mineral Resources Earth Sciences. 239-268. gs :: view :: open

    Wei, W. & Thierstein, H. R. (1991). Upper Cretaceous and Cenozoic calcareous nannofossils of the Kerguelen Plateau (Southern Indian ocean) and Prydz Bay (East Anatarctica). Proceedings of the Ocean Drilling Program, Scientific Results. 119: 467-493. gs :: view :: open

    Young, J. R. (1990). Size variation of Neogene Reticulofenestra coccoliths from Indian Ocean DSDP cores. Journal of Micropalaeontology. 9: 71-86. gs :: view :: open


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    Reticulofenestra producta compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 10-7-2020

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    Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=1181 Go to Archive.is to create a permanent copy of this page - citation notes



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