More dinos from the 1980s era line mentioned by vintagevinyl above: These were produced by a company named Sun & Brownie, and are stamped 1981 on their undersides. I can't really find much more information about this company (at least not in English). One interesting point is that the molds for these toys appear to have been shared with another, better known company: Clover. Clover released some or all of the same sculpts with completely different paint schemes and packaging AND included tiny cavemen with the dinosaurs. No idea which line came first. I had no idea that Clover even produced vinyl dinosaurs, so if anyone knows more, please share!