Most of the whale and seal remains are discovered in developed urban areas, such as Ottawa and Montreal.  This is because of the mass excavations that take place in these regions.  80% of the whales found are white whales (Delphinapterus leucas) which are found in ancient raised beach deposits. (Harington, 1988)  Since most of the species are still in existence today, like the humpbacked whale, and harp seal, it allows us to see through a portal into the past to determine paleohabitates.
In the marine delta deposits, and marine clays,
remains of little seals like this one, have been found