436-million-year-old scorpion becomes oldest known scorpion species

Scientists have discovered that two fossilised scorpions, discovered in 1985 but studied recently, lived about 436.5-437.5 million years ago, making it the oldest-known scorpion species. The aquatic 'Parioscorpio venator' could also live on land and is now one of the earliest air breathers known to science. Scorpions were among the first animals to fully transition to terrestrial mode of life.