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The database is hosted by Kiel University
and is established by Magda Wieckowska-
Lüth, Wiebke Kirleis and Kay Schmütz,
Institute for Prehistoric and Protohistoric Archaeology.

© Wieckowska-Lüth/Kirleis/Schmütz 2020

Type: HdV-187C

Category: Animalia

Taxonomical identification: cf. Invertebrata

First publication: van Geel, B., Coope, G.R. and van der Hammen, T. (1989) Palaeoecology and stratigraphy of the Late-glacial type section at Usselo (The Netherlands). Review of Palaeobotany and Palynology 60, 25–129

Other publication/s: No information

Description: Depressed globose, hyaline microfossil, 36–45 µm in diameter, with a 1.5–2.5 µm wide central pore at one side; Around that pore two concentric rings (diameters 7–10 µm and 23–28 µm), formed by irregularly inserted processes; The surface, the central parts excepted, beset with 40–49 rows formed by radially arranged processes ca. 0.3 µm in diameter.

(Sub-) Fossil occurence: In lake deposits, Phragmites and Carex peat

Co-occurence: No information

Modern occurence: No information

Palaeoenvironmental indication: Eutrophic to mesotrophic conditions