Archaebranchinecta barstowensis

Archaebranchinecta barstowensis is a species of fairy shrimp (Anostraca) that inhabited California during the Middle Miocene (13.4 million years ago).^[1] Its fecal material is abundant in the concretions from the Barstow Formation.^[2] A limited number of whole specimens have been found, and they represent the "best-preserved fossil anostracan known to date".^[1] The closest relative of A. barstowensis appears to be Archaebranchinecta pollicifera from the surroundings of Lake Titicaca,^[1] and the two have been separated from the genus Branchinecta as the new genus Archaebranchinecta.^[3]

Archaebranchinecta barstowensis Temporal range: Middle Miocene PreꞒ Ꞓ O S D C P T J K Pg N ↓
Artist's restoration
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Branchiopoda
Order:	Anostraca
Family:	Branchinectidae
Genus:	Archaebranchinecta
Species:	†A. barstowensis
Binomial name
†Archaebranchinecta barstowensis (Belk & Schram, 2001)
Synonyms
Branchinecta barstowensis Belk & Schram, 2001