Taxonomy:
Distinguishing features: Circular Pemma species
Farinacci & Howe catalog pages: P. rotundum *
Size: Holotype 14µm
Tags | LITHS: nannolith-radiate, pentagonal, CA: pores, CROSS-POLARS: T-prominent, |
Metrics | Lith size: 8->14µm; Segments: 5->5; Data source notes: lith size (diameter) from OD & illustrated specimens |
Geological Range:
Last occurrence (top): within Late Eocene Sub-Epoch (33.89-37.75Ma, top in Priabonian stage). Data source: original description
First occurrence (base): within Late Eocene Sub-Epoch (33.89-37.75Ma, base in Priabonian stage). Data source: original description
Plot of occurrence data:
Perch-Nielsen, K. (1971c). Elektronenmikroskopische untersuchungen an Coccolithen und verwandten Formen aus dem Eozan von Danemark. Biologiske Skrifter, Kongelige Danske Videnskabernes Selskab. 18(3): 1-76. gsReferences:
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Pemma rotundum compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 1-3-2021
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