Some new and stratigraphically useful calcareous nannofossils of the Cenozoic

Author(s): Bukry, David; Bramlette, M. N.
Volume Title: Tulane Studies in Geology and Paleontology
Source: Tulane Studies in Geology and Paleontology, 7(3), p.131-142. Publisher: Tulane University of Louisiana, New Orleans, LA, United States. ISSN: 0041-4018 CODEN: TSGEB6
Note: In English; illus.
Summary: Fifteen new species of calcareous nannofossils of probable stratigraphic significance are described. Cyclococcolithus macintyrei, Discoaster neohamatus, D. quintatus, Helicopontosphaera sellii, Micrantholithus procerus, Sphenolithus anarrhopus, S. neoabies, Thoracosphaera prolata, Triquetrorhabdulus inversus are abundant with wide geographic ranges. Their usefulness in developing worldwide zonations has been evident during preliminary studies of Deep Sea Drilling Project cores; naming the taxa, therefore, is important. Helicopontosphaera papillata, Leptodiscus larvalis, Pemma snavelyi, Quinquerhabdus colossicus, Syracosphaera formosa, S. labrosa, presently known from restricted regions or forming a minor part of worldwide assemblages, also may prove useful because they are easily identified and seem to have restricted time ranges.
Year of Publication: 1969
Research Program: DSDP Deep Sea Drilling Project
Key Words: 09 Paleontology, Paleobotany; Algae; Assemblages; Biostratigraphy; Biozones; Deep Sea Drilling Project; Global; Microfossils; Nannofossils; Plantae; Range; Thallophytes
Record ID: 1969036546
Copyright Information: GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from Bibliography and Index of North American Geology, U. S. Geological Survey, Reston, VA, United States

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