Compiling a ‘dentist’s handbook’ for penis worms

6 mayo 2015

A new study of teeth belonging to a particularly phallic-looking creature has led to the compilation of a prehistoric ‘dentist’s handbook’ which may aid in the identification of previously unrecognised specimens from the Cambrian period, 500 million years ago. The carnivorous Penis Worm, or Ottoia, known from 500-million-year-old fossils, was a fearsome beast: it could turn its mouth inside out to reveal a tooth-lined throat that looked like a cheese grater.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/dGzm6Sxg4II/150506084634.htm

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