Fossil of 425-million-year-old parasite with host discovered in England

21 mayo 2015

Scientists have discovered a new species of fossil in England — and identified it as an ancient parasitic intruder. The fossil species — a ‘tongue worm’, which has a worm-like body and a head and two pairs of limbs — is actually a parasite whose representatives today live internally in the respiratory system of a host, which it enters when it is eaten.