Suessiales

{{Short description|Order of single-celled organisms}}

{{Automatic taxobox

| image =

| image_caption =

| taxon = Suessiales

| authority = Fensome, Taylor, Norris, Sarjeant, Wharton & Williams, 1993

| subdivision_ranks = Families

| subdivision =

• Biecheleriaceae
• Borghiellaceae
• Suessiaceae
• Symbiodiniaceae

}}

Suessiales is an order of dinoflagellates.{{cite journal |vauthors=Murray S, Flø Jørgensen M, Ho SY, Patterson DJ, Jermiin LS |title=Improving the analysis of dinoflagellate phylogeny based on rDNA |journal=Protist |volume=156 |issue=3 |pages=269–86 |date=November 2005 |pmid=16325541 |doi=10.1016/j.protis.2005.05.003}}{{cite journal|vauthors=Moestrup Ø, Lindberg K, Daugbjerg N|date=2009-08-21|title=Studies on woloszynskioid dinoflagellates IV: The genus Biecheleria gen. nov|journal=Phycological Research|volume=57|issue=3|pp=203–220}}

It includes Borghiella, Glenodinium, Polarella and Symbiodinium.Knechtel J, J Kretschmann, J Chacón & M Gottschling (2020): Dinastridium verrucosum Baumeister from Bavaria (Germany) is a borghiellacean dinophyte (†Suessiales). Protist 171: 125741. {{doi|10.1016/j.protis.2020.125741}}