meridianimaribacter meridianimaribacter meridianimaribacter is a gram-negative and rod-shaped genus of bacteria from the family of flavobacteriaceae with one known species (meridianimaribacter flavus). meridianimaribacter scientific classification domain: bacteria phylum: bacteroidota class: flavobacteria order: flavobacteriales family: flavobacteriaceae genus: meridianimaribacterwang et al. 2010 type species meridianimaribacter flavus species m. flavus