Bacillariophyceae
Class of diatoms
From Wikipedia, the free encyclopedia
Bacillariophyceae is a class of diatoms.[1] Previously, this class was equivalent to Diatomeae, the taxonomic name for all diatoms.[3] However, due to both the known and estimated diversity of diatoms, since 2019 they have been expanded to several classes.[4] In particular, Bacillariophyceae was given the following modified diagnosis:[1]
"Chain-forming, colonial or solitary; valve outline almost always bipolar; valve pattern organized bilaterally about an elongate axial rib (sternum), as in a feather; valve structure simple or chambered; rimoportulae generally only one or two per valve or none, sometimes accompanied (or replaced?) by special slits (the 'raphe') involved in motility; sexual reproduction involving gametangiogamy and almost always with gametes of equal size (although sometimes with behavioral differentiation and/or morphological differences); perizonium generally differentiated into two distinct series, transverse and longitudinal; chloroplasts usually only one, two or a few and large, less often many and small."
| Bacillariophyceae Temporal range: | |
|---|---|
| |
| Bacillaria paxillifera | |
Scientific classification  | |
| Domain: | Eukaryota |
| Clade: | Sar |
| Clade: | Stramenopiles |
| Division: | Ochrophyta |
| Clade: | Bacillariophyta |
| Class: | Bacillariophyceae Haeckel 1878, emend. Adl et al. 2019[1] |
| Subclasses and families[1][2] | |
| |