Related Experiment Video
Updated: Dec 27, 2025

A Method for Extracting Pigments from Squid Doryteuthis pealeii
Published on: November 9, 2016
Shell Colour in Cercozoa; a Simple Trait to Distinguish Thecofilosea from Imbricatea?
Kenneth Dumack1, Ferry Siemensma2
1University of Cologne, Terrestrial Ecology, Institute of Zoology, Zülpicher Str. 47b, 50674 Köln, Germany.
Abstract:
Rigid and persistent shells of microeukaryotes are widely used as bioindicators in ecological and paleontological studies. Drawing conclusions on ecological or evolutionary patterns depends strongly on the right taxonomic assignment of the observed species, however confusion is common. Especially in filose shelled amoebae it is often unclear whether species belong to the Imbricatea or Thecofilosea when only morphological data are collected. Molecular surveys shed light on their evolutionary relationship; based on these we propose a hypothesis how to differentiate doubtful species even light microscopically.
Related Concept Videos
Other Algae
Epistasis
Diversity of Protists III
Diversity of Protists IV
Diversity of Protists II
Mate Choice

