ozarkcollenia ozarkcollenia ozarkcollenia is an extinct genus of stromatolite-making cyanobacteria from missouri, united states. it was related to collenia. ozarkcollenia may have formed in a lake of volcanic origin. the fossils of ozarkcollenia laminata have been dated to the proterozoic eon, about 1.5 billion years ago. it occurs in parts of missouri's ozark mountains. ozarkcolleniatemporal range: ozarkcollenia laminata scientific classification domain: bacteria phylum: cyanobacteria order: kanithosia (unranked): stromatolithina genus: †ozarkcollenia binomial name †ozarkcollenia laminata