Revistes Catalanes amb Accés Obert (RACO)

First known fossil bird tracks (Pleistocene) on San Salvador island, Bahamas

A.J. Martin, M.J. Whitten

Resum


Two avian footprints discovered in the Grotto Beach Formation (Pleistocene) of San Salvador Island (The Bahamas) are the first known vertebrate trace fossils on this well-studied island. The trace fossils, preserved as bedding-plane impressions in an oolitic-bioclastic grainstone, match the size and form of tracks made by modern gulls. The tracks are in beach facies located below a paleosol dated from Marine Isotope Substage 5e (~120,000 kya). These tracks add to a record of Pleistocene bird tracks reported from Eleuthera Island and bode well for the recognition of more vertebrate trace fossils on San Salvador and other Bahamian islands.

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