Thag Simmons R.I.P.

Thinking of Gary Larson, I love the thought that one of his cartoon coinages has been taken up as a genuine term in palaeontology. See here.

"Now this end is called the thagomizer, after the late Thag Simmons."

The Disney animators on Fantasia had no doubt of the thagomizer's purpose, as can be seen seven and a half minutes into this clip: