Morphology and taxonomic position of the Late Cretaceous diatom genus Pomphodiscus Barker & Meakin

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doi: 10.2113/46.2.167
Author(s): Nikolaev, Vladimir A.; Harwood, David M.
Author Affiliation(s): Primary:
Academy of Sciences of Russia, Botanical Institute, Saint Petersburg, Russian Federation
Other:
University of Nebraska-Lincoln, United States
Volume Title: Micropaleontology
Source: Micropaleontology, 46(2), p.167-177. Publisher: American Museum of Natural History, New York, NY, United States. ISSN: 0026-2803 CODEN: MCPLAI
Note: In English. 22 refs.; illus., incl. 1 table, 4 plates
Summary: Results from our investigation of Upper Cretaceous diatoms from the Marca Shale Member of the Moreno Shale in California and from Ocean Drilling Program (ODP) Hole 748C on the Kerguelen Plateau, Southern Indian Ocean enable a clarification of the taxonomic position of several diatoms. Differences in areola structure, a primary and conservative character of the diatom valve, are used to separate diatoms recently included in the genus Benetorus. We resurrect the genus Pomphodiscus to include species with locular areolae, a central rimoportula, and a central inflated chamber. We propose the new species Pomphodiscus kerguelensis n. sp. and new combination Pomphodiscus craspedodiscoides comb. nov.
Year of Publication: 2000
Research Program: ODP Ocean Drilling Program
Key Words: 09 Paleontology, Paleobotany; Algae; Antarctic Ocean; Cretaceous; Diatoms; Indian Ocean; Kerguelen Plateau; Leg 120; Mesozoic; Microfossils; Morphology; New taxa; ODP Site 748; Ocean Drilling Program; Plantae; Pomphodiscus; Pomphodiscus craspedodiscoides; Pomphodiscus kerguelensis; Taxonomy; Upper Cretaceous
Coordinates: S582627 S582627 E0785854 E0785853
Record ID: 2001049489
Copyright Information: GeoRef, Copyright 2019 American Geosciences Institute.