Figure 2 : Paleogeography of Baltica and neighboring cratons at the time of the increased cosmic bombardment following the ~470 Ma asteroid breakup event, and timeline for the related meteorite falls (black dot and line) as well as known craters (red dots).

From: First known Terrestrial Impact of a Binary Asteroid from a Main Belt Breakup Event

Figure 2

Light blue color represents areas of shallow epicontinental seas, and dark blue areas of deep ocean. This distribution may, however, have varied somewhat due to periodical transgressions and regressions of the sea. The map is created in Adobe Illustrator 10. Paleogeographic map modified from PALEOMAP Project30. For details on the craters and meteorite falls see Supplementary Table 1.