The life cycle under favorable conditions is 6-12 hours. Temperature is important. The lower it is, the longer the cycle. In laboratory conditions, I kept them at 100 C for 3 months.
The life cycle under favorable conditions is 6-12 hours. Temperature is important. The lower it is, the longer the cycle. In laboratory conditions, I kept them at 100 C for 3 months.
Can you elaborate re "prehistoric" ? Stanier described the phylum Cyanobacteria in 1973. Not sure you can distinguish specie before. Perhaps you might consider age in an evolutionary sense Article Cyanobacteria evolution: Insight from the fossil record
Also considering the range of cyanobacteria, there may be no single answer. Cyanobacteria ( Scytonema, Gleocapsa, etc). grow on/stain roofing asphalt shingles surviving heat, desiccation..