Domain Eukaryota Class Bacillariophyceae Suborder Biddulphiineae | Superphylum Heterokonta Order Centrales Family Hemiaulaceae | |
Abas is an extinct genus of diatoms consisting of only one known species: Abas wittii. Originally observed as a fossil genus classified with diatom spore forms under the name Syringidium. Abas was observed to be live from the Eocene to Oligocene epoch appearing in tropical sites.
References
Abas (diatom) Wikipedia(Text) CC BY-SA