Honestly, I memorised the bands once in orgo, and never looked at them again, so you’re more likely to know than I.

I think that wouldn’t necessarily work once you get to the right wavelengths for it to start interacting with the organic bases of the paints. There’s only so much you can do when someone shoots an infrared laser at the resonant frequency of a C=C double bond.

I believe that, nowadays, it is generally accepted that dinosaurs, crocodilians and birds are all “archosaurs”. In a similar way to how Australopithecus, Humans and Chimpanzees are all “hominids”.