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Wall structure of Globotruncanidae, Globorotalia and Gavelinella

Jan Hofker
Wall structure of Globotruncanidae, Globorotalia and Gavelinella
Micropaleontology (1964) 10 (4): 453-456


"Sections through some species of Globotruncanidae, through Globorotalia tumida and through Gavelinella tumida clearly show that only in the latter species are the chamber septa double and that planktonic foraminifera mostly have simple septa. The reason for these results, contradictory to those of other authors, seems to be the recrystallisation of the thin septal walls in rock-filled specimens. In the present study only air-filled specimens were used. The double septa of the Gavelinellidae are interpreted as a primary wall, covered by the hyaline toothplate; in Globotruncanidae, on the other hand, the toothplate does not cover the primary wall but forms the flap over the umbilical hollow."

ISSN: 0026-2803
Serial Title: Micropaleontology
Serial Volume: 10
Serial Issue: 4
Title: Wall structure of Globotruncanidae, Globorotalia and Gavelinella
Author(s): Hofker, Jan
Pages: 453-456
Published: 1964
Text Language: English
Publisher: American Museum of Natural History, New York, NY, United States
Accession Number: 1964-002214
Categories: Invertebrate paleontology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus.
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from Bibliography and Index of Geology Exclusive of North America, Geological Society of America, Boulder, CO, United States
Update Code: 1964
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