File:EB1911 Foraminifera - Nummulites - Vertical section.jpg

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Summary

Description

English: Vertical section of portion of Nummulites, showing the investment of the earlier whorls by the alar prolongations of the later. Legend: a, Marginal cord. b, Chamber of outer whorl. c, c, Whorl invested by a. d, One of the chambers of the fourth whorl from the margin. e, e′, Marginal portions of the enclosed whorls. f, Investing portion of the outer whorl. g, g, Spaces left between the investing portions of successive whorls. h, h, Sections of the partitions dividing these.

Date

published 1911

Source

“Foraminifera,” Encyclopædia Britannica (11th ed.), v. 10, 1911, p. 631, fig. 11.

Author

Marcus Manuel Hartog

Permission
(Reusing this file)

This image comes from the 13^th edition of the Encyclopædia Britannica or earlier. The copyrights for that book have expired in the United States because the book was first published in the US with the publication occurring before January 1, 1929. As such, this image is in the public domain in the United States.

File history

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	17:38, 19 July 2018		659 × 341 (111 KB)	Bob Burkhardt	add labels missing in original
	17:28, 19 July 2018		640 × 342 (86 KB)	Bob Burkhardt	{{Information \|description ={{en\|1=Vertical section of portion of ''Nummulites'', showing the investment of the earlier whorls by the alar prolongations of the later. Legend: ''a'', Marginal cord. ''b'', Chamber of outer whorl. ''c'', ''c'', Whorl invested by ''a''. ''d'', One of the chambers of the fourth whorl from the margin. ''e'', ''e''′, Marginal portions of the enclosed whorls. ''f'', Investing portion of the outer whorl. ''g'', ''g'', Spaces left between the investing portions of s...

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