This article has some short but interesting history of Pigments that are no longer made for reasons of toxicity....Maya Blue, Tyrian Purple, White Lead, Lapis Lazuli and the wonderfully-named Dragon's Blood.
Even more interesting is the next pigment, not toxic but no longer used....Mummy Brown. Actually made from ground up cat and human remains, a painting is shown that was made from the remains of French kings dug up in Paris. "We might have a few odd limbs lying around somewhere, but not enough to make any more paint" explained the Managing Director of a London Pigment company that no longer makes the paint.
Also Indian Yellow and Scheele's Green....
Here's the link: