Before Continental Drift was the accepted theory on the formations of the Earth's surface another theory had some following. Expanding Earth theory's reasoning comes from continents matching up like puzzle pieces (same as Continental Drift). But instead of continents floating around on plates Expanding Earth claims the Earth has been growing since the era of the dinosaurs. Ways of growth are "explained" by phase change of the Earth's materials or gravity fluxes (which allowed dinosaurs to be so big).
Ask most geomorphologists about Expanding Earth and the answer received will be "no." But there are still holdouts like the video above.