Information about three fossiliferous fisure fillings fíom
the island of Eivissa is presented in this paper. Only two of
them have fournished remains o£ Mammals. Both present evidence
for insularity. The oldest one (Ses Fontanelles) is considered
to be o£ Messinian age (Upper Miocene) on the base
o£ the presence o£ a Gerbillinae.