How Did Worm Lizards Get Dispersed?
No, it's not a snake. No, it's not a worm, even though it burrows. It's called a worm lizard, or an amphisbaenian. It has the equipment of a lizard (teeth, eyes, certain scales, backbones and so on), so that's how it's classified. Even so, the specific order is being reconsidered, since they used to be setting up camp with Squamata (scaled lizards), but they may belong in a different classification. Not that they care, they'll go on about their business no matter what humans call them. Two Iberian worm lizards / Image resized from original / Wikimedia Commons / Richard Avery Aside from being a passel of classification hassle, these critters baffle evolutionists because of their wide dispersal (biogeography). Evolutionists thought that they were spread apart when the ancient supercontinent Pangaea broke up, but that idea has changed because observed evidence contradicts it. Although their circular reasoning and old earth dating assumptions are errant, th