about 360 million years ago
360 millions of years ago
Yes, Opabinia are classified as arthropods, although the genus is extinct.
The cast of Uusi Opabinia - 1994 includes: Niko Rautio as Pena
I think they became extinct at the end of the Mesozoic era
The dodo bird became extinct in the early 1600's. The Triceratops became extinct long before that.
the dinosaurs became extinct because the was kill of there family
no one really nows how or when they became extinct
The sea mink became extinct because is was hunted to extinction for it's fur.
after dinsaurs became extinct
Vegetarians that became extinct
They became extinct
They are not extincted
Yes. Sadly,they became extinct in the 17th century.