Strange fossil defies grouping

A strange fossil creature from the early Cambrian Period is baffling scientists because it does not fit neatly into any existing animal groups.

The 525 million-year-old soft-bodied animal might have belonged to a now extinct mollusc-like phylum, scientists from America and China say.

Other researchers have suggested the creature could represent an early annelid or arthropod.

Read full article at BBC News

http://news.bbc.co.uk/2/hi/science/nature/4156544.stm