October, 1999; 250-million-year-old bacteria were found in ancient sea salt beneath Carlsbad, New Mexico. The microscopic organisms were revived in a laboratory after being in 'suspended animation', encased in a hard-shelled spore, for an estimated 250 million years. The species has not been identified, but is referred to as strain 2-9-3, or B. permians.
These are specimens of the 250-million year old bacteria, B. permians. If it can be verified that these were re-animated from a long, long period of suspended animation then they hold the record for world's oldest living organism