According to their reconstructed paleogeographic map
, the domain corresponding to present-day Estonia likely started to receive terrigenous clastics not only from the core of Baltica in the north/ west, as was the case during the Ediacaran, but also from uplifted areas in the east/southeast since the Early Cambrian appearance of this embayment.
One locality plotted in the middle of the seaway on each paleogeographic map from the Cretaceous which overlapped the localities current age assignment.
The creation of such maps requires three things; an extensive database of fossil molluscan taxa, paleogeographic maps, and geologic maps.
The plate tectonic evolution of the North American continent has been reconstructed in considerable detail by Ron Blake, whose series of paleogeographic maps
is posted on his website at www.
The first chapter features new paleogeographic maps
that document Gondwana's geological history.
of the Late Ordovician in the Central China region and their explanation.