| Biddulphia | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Clade: | Sar |
| Clade: | Stramenopiles |
| Phylum: | Ochrophyta |
| Clade: | Diatomeae |
| Subphylum: | Bacillariophytina |
| Clade: | Biddulphiophyceae |
| Clade: | Biddulphiophycidae Round & R.M. Crawford in Round et al. 1990, emend. Adl et al. 2019 [1] |
| Genus: | Biddulphia |
Biddulphia is a genus of diatoms. [1] [2] It is the only genus within the unranked clade Biddulphiophycidae. In 2019, Biddulphiophycidae was given the following diagnosis: [1]
"Chain-forming (linked by mucilage pads), generally large-celled and robust; valve outline sometimes undulate; polar projections small or large and valve often with additional doming centrally and sometimes between centre and poles; pattern organized radially about a central circular annulus; pore fields ('pseudocelli') present at the poles; rimoportulae central. Biddulphia."
