Contact: Jan Zalasiewicz
jaz1@le.ac.uk
44-011-625-23928
University of Leicester

Specimen of the Chitinozoan Species Armoricochitina

Caption: This is a specimen of the chitinozoan species Armoricochitina nigerica (length = c. 0.3mm). Chitinozoans are microfossils of marine zooplankton in the Ordovician. Their distribution allows to track climate belts in deep time, much in a way that zooplankton has been used for climate modeling in the Cenozoic. A. nigerica is an important component of the Polar Fauna during the late Ordovician Hirnantian glaciation.

Credit: University of Leicester

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