Phylogeny of some of the major genera of dinoflagellates based on ultrastructure and partial LSU rDNA sequence data, including the erection of 3 new genera of unarmoured dinoflagellates.

Key Points

• Phylogenetic analysis reveals significant structural differences among dinoflagellate genera, clarifying evolutionary relationships.
• The analysis is based on ultrastructure and partial LSU rDNA sequence data, highlighting genetic diversity within the group.
• Various genera were examined, leading to the identification of three new genera of unarmoured dinoflagellates.
• This study enhances our understanding of dinoflagellate evolution and supports biodiversity conservation efforts.