Unknown freshwater foraminifer
The first of six specimens, discovered in a speck of dry Sphagnum, 2025

Unknown non-marine organic-walled monothalamid

Remarks: In October 2025 and March 2026, six specimens were found in dry Sphagnum growing in a newly restored section of an old peatland near the town of Bussum, the Netherlands.

Unknown freshwater foraminifer
Compressed specimen with cytoplasm extruding from the cell, revealing nuclei (n) and numerous oblong crystals (white dots).
Centropyxis aculeata
Centropyxis aculeata
Nuclei
Unknown freshwater foraminifer
Spherical shape
Unknown freshwater foraminifer
Oblong shape
Ferry Siemensma, created March 25, 2026; last modified May 17, 2026
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