A problematical dinoflagellate from the Tertiary of Virginia and Maryland

16 4 Mon, 01/01/1973 - 12:00 November 729 732

MCLEAN, D. M. 1973. A problematical dinoflagellate from the Tertiary of Virginia and Maryland. Palaeontology, 16, 4, 729–732.

Dewey M. McLean Inversidinium exilimurum, gen. et sp. nov., a problematical dinoflagellate recovered from the Aquia Formation (Upper Paleocene) of the Virginia-Maryland Coastal Plain, displays an atypical peridinioid outline characterized by a truncated antapex which ruptures to form a hitherto unreported type of antapical excystment apparatus; antapical archeopyles are exceedingly rare among the dinoflagellates. The Palaeontological Association (Free Access)