Polacanthoides
Polacanthoides is an invalid genus of nodosaurid dinosaur from Europe. It lived about 140 to 135 million years ago in what is now England. It was named by Nopsca in 1928. The type specimen is NHMUK 2584. It is a junior synonym of both Hylaeosaurus and Polacanthus and was based on a chimera of skeletal elements.