R E S E A R C H I N T E R E S T S
My research interests are primarily in sessile orders of graptolites and pterobranchs. I am interested in all aspects of the
Hemichordata including their biology, paleobiology, evolution, systematics, ultrastructure, and stratigraphy. Moreover, my
interests are also in various Ordovician and Silurian organic microfossils, e.g. jaws of polychaete annelids (scolecodonts),
chitinozoans, "chitinous" hydroids, scyphozoans, melanosclerites and all acid-resistant problematica.
Piotr Mierzejewski, the Count of Calmont
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Scanning electron micrograph of a colony fragment of the
Epigraptus-like tuboid graptolite from the Ordovician erratic
boulder from Poland.
Portal of Graptolites and Pterobranchs
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