Home
About
Categories
Photo gallery
Taxa list
Acronymes

Contact
Disclaimer


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-1261

Category: Pteridophyta

Taxonomical identification: cf. Pteris / Actiniopteris sp.

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:
Tryon, A.F. and Lugardon, B. (1990) Spores of the Pteridophyta. Surface, wall structure, and diversity based on Electron Microscope Studies. Springer-Verlag, New York
Verdcourt, B. (1999) Actiniopteridaceae. In: Beentje, H.J. and Smith, S.A.L. (eds.), Flora of Tropical East Africa. A.A. Balkema, Rotterdam-Brookfield
Verdcourt, B. (2002) Pteridaceae. In: Beentje, H.J. and Ghanzanfar, S.A. (eds.), Flora of Tropical East Africa. A.A. Balkema, Rotterdam-Brookfield

Description: Spores tetrahedral-globose, yellow to brown, 43–48 × 40–45 μm, with prominent equatorial flange/rib, surface covered with low tubercles, trilete scar with long arms (3/4 the radius). This spore resembles some species of Pteris and Actiniopteris, which can be morphologically similar.

(Sub-) Fossil occurence: No information

Co-occurence: No information

Modern occurence: Pteris is distributed in the tropics, subtropics and warm temperate regions, whereas Actiniopteris is primarily restricted to Africa, Madagascar and the adjacent islands extending northeastward to Afghanistan, Nepal, India and Sri Lanka (Tryon and Lugardon, 1990). Both taxa occur in a wide variety of habitats (rock outcrops, woodland, bushland), but Actiniopteris is apparently more favoured by dry conditions (Verdcourt, 1999, 2002).

Palaeoenvironmental indication: No information