The
holotype is
NHMUK 2584 and it is a left scapula and left tibia discovered at the
quarry near
Bolney,
West Sussex sometime between the 1820s and 1833; the whereabouts of the holotype scapula could not be located by Blows (1987). NHMUK 2584 was initially assigned to
Hylaeosaurus by
Mantell (1833), and the new species
Polacanthoides ponderosus was created for it by
Nopsca (1928). == Classification ==