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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: UG-1235

Category: Algae

Taxonomical identification: Pediastrum angulosum

First publication: Gelorini, V., Verbeken, A., van Geel, B., Cocqyt, C. and Vershuren, D. (2011) Modern non-pollen palynomorphs from East African lake sediments. Review of Palaeobotany and Palynology 164, 143–173

Other publication/s: Komárek, J. and Jankovská, V. (2001) Review of the green algal genus Pediastrum. Implication for pollen-analytical research. Bibliotheca Phycologia 108, 1–127

Description: Coenobia circular, slightly oval or irregular in outline, hyaline, 79–190 × 79–125 μm, comprised of 16–64 tightly packed cells. Peripheral cells with two short, conical processes flanking a U-shaped concave margin, cell wall with distinct irregular net-like sculpture. Peripheral and inner cells resp. 27 and 23 μm.

(Sub-) Fossil occurence: Based on fossil records in temperate regions (Denmark, Finland, Germany, Russia), it seems indicative for both large and small lake habitats with slightly alkaline water and abundant submerged macrophyte vegetation (Komárek and Jankóvska, 2001).

Co-occurence: No information

Modern occurence: Pediastrum angulosum is a cosmopolitan but not very common planktonic species with numerous varieties in need of taxonomic revision.

Palaeoenvironmental indication: Indicative for both large and small lake habitats with slightly alkaline water and abundant submerged macrophyte vegetation.