Peridinium acuminatum (Peridiniales, Dinophyceae) was described in the first half of the 19th century, but the name has been rarely adopted since then. It was used as type of Goniodoma, Heteraulacus and Yesevius, providing various sources of nomenclatural

A small, photosynthetic Peridiniales species caused an intense bloom (up to 37,500,000 cells/l) in the marina of Sisal on the northern Yucatan Peninsula coast, SE Gulf of Mexico, in August 2010. The salinity was 32.4, and the water temperature was 29.5

Amphidiniopsis is a benthic, heterotrophic and thecate dinoflagellate genus that has a smaller epitheca and larger hypotheca. The genus contains 24 described species, but is considered to be polyphyletic based on morphological characters and molecular