Showing a Bit of Backbone

yevrah writes "Palaeontologists in South Australia have found the earliest occurance of a fossil displaying primitive vertebrate. Described as something like a tadpole that probably wriggled through the bottom of the ocean this little critter is a likely missing link between invertebrates and fish."

Comments

vertebrae?

[jguevin]

I didn't RTFA, but I think that's the word you wanted.