324-million-year-old insect with 24 legs may reveal how crustaceans evolved into insects

Researchers have described a previously unknown creature that lived 324 million years ago and had 24 legs, appearing to have lived between land and sea. The species seems to be a transitional form that could help fill an 80-million-year gap in the fossil record documenting how crustaceans evolved into insects, with major implications for palaeontology.