Although plant fossils are scarce, these deposits preserve one of the best Tertiary mammal faunas in the world.
The large mammal fauna, now almost gone in West Africa, is still present, although threatened by commercial bushmeat (and some ivory) hunting.
Papallacta is in a remote area that is difficult to access, and the mammal fauna of the region remains poorly known.
It bears an important reptile and mammal fauna, that can be correlated to the African continent.
The mammal fauna of the reserve is impoverished.
A unique and diverse albeit phylogenetically restricted mammal fauna is known from the Caribbean region.
They have recorded 140 species of mammals, representing 47% of the mammal fauna in Venezuela.
The mammal fauna of the Allen Formation is known from seven teeth, which document the presence of several species.
The native mammal fauna of New Guinea lacks large predators.
The area is one of only two in Australia that retains a largely intact mammal fauna.