New calcareous nannofossil species and stratigraphic markers from the upper Paleocene

Author(s): Wei, Wuchang
Author Affiliation(s): Primary:
Scripps Institution of Oceanography, San Diego, CA, United States
Volume Title: Journal of Nannoplankton Research
Source: Journal of Nannoplankton Research, 20(2), p.107-115. Publisher: International Nannoplankton Association, The Hague, International. ISSN: 1210-8049
Note: In English. 39 refs.; illus., incl. 1 plate, 1 table, strat. cols.
Summary: A new species, Discoaster protomuluradiatus, is described from the Upper Paleocene. The stratigraphic distributions of this and a poorly known species. Ericsonia robusta, are documented from seven DSDP/ODP sites from low through high latitudes. D. protomultiradiatus generally ranges from slightly below to slightly above the first occurrence of Discoaster multiradiatus (NP8/NP9 zonal boundary) and correlates with the middle part of magnetic chron C25n. E. robusta ≥11 µm has a longer range and generally occurs from near the bottom of magnetic chron C25n to the top of chron C25n. These datums provide four potentially useful stratigraphic markers for low through high latitude correlations in the Upper Paleocene.
Year of Publication: 1998
Research Program: DSDP Deep Sea Drilling Project
ODP Ocean Drilling Program
Key Words: 12 Stratigraphy, Historical Geology and Paleoecology; Algae; Biostratigraphy; Cenozoic; Correlation; Description; Discoaster; Discoaster multiradiatus; Discoaster protomultiradiatus; Discoasteridae; Ericsonia; Ericsonia robusta; First occurrence; Magnetostratigraphy; Microfossils; Morphology; Nannofossils; New taxa; Paleocene; Paleogene; Plantae; Stratigraphy; Taxonomy; Tertiary; Upper Paleocene
Record ID: 1999039965
Copyright Information: GeoRef, Copyright 2019 American Geosciences Institute.

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