Fossils: Doctor Who actor Tom Baker honoured by scientists who name a trilobite after him

As Doctor Who, Tom Baker fought Daleks and Cybermen, robot mummies and gothic monsters -- but his latest'creature feature' has taken the form of an accolade. Australian palaeontologists have named a newly-found species of trilobite -- a segmented sea creature from 450 million years ago -- in honour of the actor. Trilobites loosely resemble woodlice -- and their closest living relatives include lobsters, crabs and scorpions. They fell extinct around 251.9 million years ago. The fossil -- 'Gravicalymene bakeri' -- was found preserved in shale rocks in Northern Tasmania that date back to the so-called'Late Ordovician' period.