Pangaea
Other large continental masses, including the core cratons of North America (the Canadian Shield or Laurentia), Europe (Baltica), and Siberia were added over time to form the supercontinent Pangaea by Permian time. When Pangea broke up (mostly during the Jurassic), two large masses, Gondwana and Laurasia, were formed. The re-formed Gondwanan continent was not precisely the same as that which existed before Pangaea formed; for example, most of Florida and southern Georgia and Alabama are underlain by rocks that were originally part of Gondwana but that were left attached to North America when Pangaea broke apart.
Read more about this topic: Gondwana