arrayname: original
Distinguishing features:
Parent taxon (Prinsiosphaera): Spherical, solid nannolith formed from stacked groups of calcite plates.
This taxon: Medium to large spherical solid nannolith formed from stacked groups of calcite plates.
Sub-taxa & variants (time control age-window is: 0-800Ma)![]() | ||||
![]() | ![]() | Prinsiosphaera triassica subsp. crenulata In LM appears to be formed of crenulate layers. |
Taxonomy:
Farinacci & Howe catalog pages: P. triassica * , P. triassica punctata * , P. triassica perforata * , P. triassica hyalina * , P. triassica noeliae *
Distinguishing features:
Parent taxon (Prinsiosphaera): Spherical, solid nannolith formed from stacked groups of calcite plates.
This taxon: Medium to large spherical solid nannolith formed from stacked groups of calcite plates.
Search data:
LITHS: nannolith-other, circular, hollow, |
Lith size: 5->10µm; Data source notes: original descriptions & illustrated specimens |
Geological Range:
Notes: Gardin et al. (2012) record P. triassica from the topmost Norian and throughout the Rhaetian
Last occurrence (top): within NT2b subzone (194.83-218.41Ma, top in Sinemurian stage). Data source: Bown 1998b
First occurrence (base): within NT2a subzone (218.41-222.40Ma, base in Norian stage). Data source: Bown 1998b
Plot of occurrence data:
Bown, P. R. (1987a). Taxonomy, evolution, and biostratigraphy of Late Triassic-Early Jurassic calcareous nannofossils. Special Papers in Palaeontology. 38: 1-118. gs Bown, P. R. (1998b). Triassic. In, Bown, P. R. (ed.) Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publication Series . 29-33. gs Bralower, T. J., Bown, P. R. & Siesser, W. (1991). Significance of Upper Triassic nannofossils from the Southern Hemisphere (ODP Leg 122, Wombat Plateau, NW Australia). Marine Micropaleontology. 17: 119-154. gs Gardin, S., Krystyn, L., Richoz, S., Bartolini, A. & Galbrun, B. (2012). Where and when the earliest coccolithophores? Lethaia. 45: 507-523. gs Jafar, A. S. (1983). Significance of Late Triassic calcareous nannoplankton from Austria and Southern Germany. Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen. 166: 218-259. gs Rutledge, D. C., Cole, S., Lawrence, T. & Gard, G. (2015). A new species of late Triassic nannofossil, Botulus triassicus, and observations on Triassic assemblages from the NW Shelf of Australia. In, Bybell, L. (ed.) INA15 abstracts Bohol, Philippines. Journal of Nannoplankton Research . 35(S): 71-71. gs Missing or ambiguous references: ; References:
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Prinsiosphaera triassica compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 15-3-2025
Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=10949 Go to Archive.is to create a permanent copy of this page - citation notes |
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