No. 57: May-Jun 1988
Anyone who has visited Florida knows that it differs in several ways from the rest of North America. Now we find that Florida doesn't even belong to North America; it is an interloper, an "exotic terrane."
How does one know this? Three facts hint that Florida doesn't belong:
"These (latter) two new lines of geologic data provide strong evidence confirming previous suggestions that Florida was part of Gondwana during the early Paleozoic and that its current configuration is that of an exotic terrane sutured to North America during the fragmentation of Pangea."
(Opdyke, Neil D., et al; "Florida as an Exotic Terrane: Paleomagnetic and Geochronologic Investigation of Lower Paleozoic Rocks from the Subsurface of Florida," Geology, 15:900, 1987.)
Comment. Other exotic terranes have been found in western North America, making the continent a veritable pastiche.