The dura mater has two layers, or lamellae: The superficial layer (also called the periosteal layer), which serves as the skull's inner periosteum, called the endocranium; and a deep layer called the meningeal layer; the actual dura mater.
The term thagomizer was coined by Gary Larson in humor, in a 1982 Far Side comic strip, in which a group of cavemen in a faux-modern lecture hall are taught by their caveman professor that the spikes on a Stegosaur's tail are so named after the late Thag Simmons.
Gary Larson is Cartoonist. Gary Larson Date of Birth is Aug 14, 1950. Gary Larson Country is United States of America. Gary Larson is the creator of The Far Side, a single-panel cartoon series that was syndicated internationally to newspapers for 15 years. The series ended with Larson's retirement on January 1, 1995.