Scientists believed lobster-like crustaceans first appeared on Earth about 360 million years ago but using
fossil records and DNA testing scientists determined the first lobster-like crustacean appeared
372 to 409 million years ago. The study also examined the evolutionary
relationships among lobsters, finding that present crayfish
distributions mirror the breakup of the super-continent Pangaea and
Gondwana, the two southern supercontinents. The study uncovered several
potential new species of lobsters.