Distinguishing features: 6 imbricate, asymmetric rays
Taxonomy:
Farinacci & Howe catalog pages: R. wisei *
Distinguishing features: 6 imbricate, asymmetric rays
Search data:Tags | LITHS: nannolith-radiate, star-shaped, CROSS-POLARS: T-prominent, |
Metrics | Lith size: 2->6µm; Segments: 6->6; Data source notes: illustrated specimens |
Geological Range:
Last occurrence (top): within Early Valanginian Substage (136.41-139.39Ma, top in Valanginian stage). Data source: Bralower et al., 1989
First occurrence (base): within Late Berriasian Substage (139.39-141.93Ma, base in Berriasian stage). Data source: Bralower et al., 1989
Plot of occurrence data:
Applegate, J. L. & Bergen, J. A. (1988). Cretaceous calcareous nannofossil biostratigraphy of sediments recovered from the Galicia Margin, ODP Leg 103. Proceedings of the Ocean Drilling Program, Scientific Results. 103: 293-348. gs V O Bown, P. R. (2005c). Early to Mid-Cretaceous Calcareous Nannoplankton from the Northwest Pacific Ocean, Leg 198, Shatsky Rise. Proceedings of the Ocean Drilling Program, Scientific Results. 198: 1-82. gs V O Covington, J. M. & Wise, S. W. (1987). Calcareous nannofossil biostratigraphy of a Lower Cretaceous deep-sea fan complex: Deep Sea Drilling Project Leg 93 Site 603, lower continental rise off Cape Hatteras. Initial Reports of the Deep Sea Drilling Project. 93: 617-660. gs V O Thierstein, H. R. (1971). Tentative Lower Cretaceous Calcareous Nannoplankton Zonation. Eclogae Geologicae Helvetiae. 64: 459-488. gs V OReferences:
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Rucinolithus wisei compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 21-1-2021
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