Taxonomy:
Farinacci & Howe catalog pages: B. planum *
Search data:Tags | LITHS: placolith, elliptical, CA: cross-axial, ca_disjunct, process, CROSS-POLARS: rim-unicyclic, V-prominent, |
Metrics | Lith size: 3.5->5.5µm; Data source notes: original description |
Geological Range:
Last occurrence (top): within Pliensbachian Stage (182.70-190.82Ma, top in Pliensbachian stage). Data source: Bown, 1987 (original description)
First occurrence (base): within Pliensbachian Stage (182.70-190.82Ma, base in Pliensbachian stage). Data source: Bown, 1987 (original description)
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. gsReferences:
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Biscutum planum compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 18-1-2021
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