Foraminifer Shell Formation

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“Formation of shell in a simple Foraminifer. In A the shell has one chamber; B, C, and D show the formation of a second. Note outflowing pseudopodia and the enclosure of the shell by a thin layer of protoplasm; note also the nucleus in the central protoplasm.” -Thomson, 1916


J. Arthur Thomson, M.A., LL.D. Outlines of Zoology (New York, NY: D. Appleton & Company, 1916)


TIFF (full resolution)

2400×1745, 611.1 KiB

Large GIF

1024×744, 116.9 KiB

Medium GIF

640×465, 61.9 KiB

Small GIF

320×232, 21.6 KiB