Tags: Crustacean.
Archaebranchinecta barstowensis is a species of fairy shrimp (Anostraca) that inhabited California during the Middle Miocene (13.4 million years ago). Its fecal material is abdundant in the concretions from the Barstow Formation. A limited number of whole specimens have been found and they represent the best-preserved fossil anostracan known to date. The closest relative of A.