Testate Amoebae –
Amoebozoa (Part), Stramenopiles (Part), Rhizaria (Part)

Observations on Paraquadrula irregularis

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Taxonomic tree according to Lahr et al., 2019 (https://doi.org/10.1016/j.cub.2019.01.078)
and González-Miguéns et al., 2022 (https://doi.org/10.1016/j.ympev.2022.107557)

Amorphea Adl et al., 2012
Amoebozoa Lühe, 1913, renewed definition Cavalier-Smith, 1998
● Tubulinea Smirnov et al., 2005
●● Elardia, Kang et al., 2017
●●● Order Arcellinida Kent, 1880
●●●● Incertae sedis Arcellinida

Paraquadrula irregularis (Archer, 1877) Deflandre, 1932

Most likely ID: n.a.

Basionym: Quadrula irregularis Archer, 1877

Add’l Synonyms: Quadrula subglobosa Lagerheim, 1901

Process (early state) of binary fission of Paraquadrula irregularis.

Place name: Well at Wendelinusplatz in 63820 Elsenfeld (Germany)
Latitude: 49.8469263 Longitude: 9.1611486

Microscope Zeiss Axioskop, camera DSLR type.

Seven images.

Please click on < or > on the image edges or on the dots at the bottom edge of the images to browse through the slides!

Place name: Well at Wendelinusplatz in 63820 Elsenfeld (Germany)
Latitude: 49.8469263 Longitude: 9.1611486

Microscope Zeiss Axioskop, camera DSLR type.

Sampling date 06/2012. Scale bars indicate 10 µm.

Three images.
Paraquadrula builds its scales from calcite, which is birefringent. That’s the reason why they show such different levels of brightness in DIC (polarized light).

Please click on < or > on the image edges or on the dots at the bottom edge of the images to browse through the slides!

Place name: Bog near Reith/Pillersee (Tyrol, Austria)
Latitude: 47.477767 Longitude: 12.337294

Microscope Zeiss Axioplan, camera Canon EOS 600D.

© Wolfgang Bettighofer,
images under Creative Commons License V 3.0 (CC BY-NC-SA).
For permission to use of (high resolution) images please contact postmaster@protisten.de.

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Observations on Paraquadrula irregularis

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