Thymadora,a new acritarch genus from the middle Cambrian Rogersville shale of Tennessee, U.S.A.

Abstract
The acritarch Thymadora kerka n. gen. et sp. (microphytoplankton incertae sedis) is described and illustrated from the Middle Cambrian Rogersville Shale of Tennessee. The Rogersville Shale, which contains the trilobite Ehmaniella, has been placed in the Glossopleura and/or Bathyuriscus‐Elrathina zones.