kingdom Chromista > subkingdom Harosa > infrakingdom Alveolata > phylum Myzozoa > subphylum Dinozoa > infraphylum Dinoflagellata > class Dinophyceae > subclass Peridiniphycidae > order Gonyaulacales > family Ceratiaceae > genus Ceratium > species Ceratium gracile
| Rank | Species |
| Status | unaccepted |
| Aphia ID | urn:lsid:marinespecies.org:taxname:233304 |
| Valid name | Tripos symmetricus |
| Valid Aphia ID | 841767 |
| Environments | marine |
This status of this taxon in WoRMS is unaccepted. The accepted taxon for Ceratium gracile (Gourret) Jorgensen, 1911 is Tripos symmetricus.