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.
Off-Ramp animation expert Charles Solomon reviews The Complete Far Side: 1980-1994 by Gary Larson. Itâs hard to believe the last panel of Gary Larsonâs wildly popular comic strip âThe Far Sideâ ran 20 years ago: January 1, 1995. The comics page of the LA Times (and many other papers) still feels empty without it. RELATED: Charles Solomon interviews artists responsible for look of Big Hero 6.