Finally, not all dead media are equally cool or funky. Unfunky, uncool dead media are worth little more than an appreciative grunt or raised eyebrow. They tend to be wannabes and incremental improvements rather than paradigm breakers. Obviously, a lot of work would have to be done to create a formal taxonomy. I suspect that any truly formal or comprehensive system would be unnecessary.
Taxonomy is a dry and forbidding term, but the act itself can prove fruitful.
The existing Master List of Dead Media is a taxonomy of sorts, but it's by no means a formal one. If any of you noble souls would like to do this, I would be very pleased to redistribute your work for our general edification. By culture of origin. Technical simplicity to technical complexity.