who coined the term thagomizer?jjjjjjjjjjjjjjjjjjj
A thagomizer is the distinctive arrangement of four to ten spikes on the tails of stegosaurid dinosaurs. These spikes are believed to have been a defensive measure against predators. The name was coined by cartoonist Gary Larson in a 1982 comic strip, and has been used in research and education since then.