Oligocene is a 9 letter English word.
You can make 262 anagrams from letters in Oligocene (ceegilnoo).
First recorded in 1855-60; oligo- + -cene
Upon this foundation rests unconformably a series of marls and limestones of Eocene and early Oligocene age.
It is these latter forms which come nearest to modern Carnivora, most of them being of Oligocene age.
The next epoch, the Oligocene, was similar but somewhat cooler.
The latter, like the similar deposits in other West Indian islands, is probably of Oligocene age.
Heteromyids are known from the Chadron formation, of early Oligocene age, in which a single tooth was found.
In the Oligocene we find primitive squirrels, beavers, rabbits, and mice.
No noteworthy fossil spiders are known; the best-preserved are in amber of Oligocene age.
Specially interesting in the Eocene and Oligocene are the mammalian remains.
Fossil remains of members of this family have also been found in Europe in strata of the Oligocene period.
They both date from the Eocene, and became extinct in the succeeding Oligocene.