Kodymirus is a genus of Early Cambrian arthropod, known from the Czech Republic, which bears some resemblance to eurypterids and aglaspidids.

Although it possessed great appendage-like raptorial arms, it was not homologous with those of megacheirans, and was instead a member of Vicissicaudata, closely related to aglaspidids.

These appendages appear convergent to those of megacheirans and radiodonts, but are not homologous as they postantennular, suggesting raptorial arms evolved multiple times in Cambrian arthropods.

[3] Kodymirus inhabited the Paseky Shale, within the modern day Czech Republic, which may be a shallow marine environment or brackish estuary.

[2][4] Trace fossils from the Shale have been interpreted as Kodymirus raking its claws along the sediment while swimming, disturbing benthic prey buried beneath the muck.