Abas Temporal range: Eocene-Oligocene, 56–23 Ma |
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Scientific classification | |
Domain: | Eukaryota |
(unranked): | SAR |
Superphylum: | Heterokonta |
Class: | Bacillariophyceae |
Order: | Centrales |
Suborder: | Biddulphiineae |
Family: | Hemiaulaceae |
Genus: | Abas |
Binomial name | |
Abas wittii R.Ross & P.A.Sims |
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.