Abas wittii

Abas wittii Temporal range: Eocene-Oligocene, 56–23  Ma PreꞒ Ꞓ O S D C P T J K Pg N
Abas wittii specimen from the Eocene North Atlantic
Scientific classification
Domain:	Eukaryota
Clade:	Sar
Clade:	Stramenopiles
Division:	Ochrophyta
Clade:	Diatomeae
Class:	Mediophyceae
Order:	Hemiaulales
Family:	Hemiaulaceae
Genus:	† Abas R.Ross & P.A.Sims, 1980
Species:	†A. wittii
Binomial name
†Abas wittii (Grunow) 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. ^[1] Abas was observed to be live from the Eocene to Oligocene epoch appearing in tropical sites. ^{[1] [2]}

References

1. M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2014. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway accessed 21 December 2014.
2. Round, F. E.; Crawford, R. M.; Mann, D. G. (4 December 2007). Diatoms: Biology and Morphology of the Genera. Cambridge University Press. pp. 270–271. ISBN   978-1-107-39313-4 . Retrieved 14 November 2022.