------------------+-----------------------------------+---------+-------- | TERTIARY. | POST- | NOW +-----------+-----------+-----------+TERTIARY.| LIVING. | EOCENE. | MIOCENE. | PLIOCENE. | | +---+---+---+---+---+---+---+---+---+----+----+----+--- | L | M | U | L | M | U | L | M | U | P | R | G | S +---+---+---+---+---+---+---+---+---+----+----+----+--- LEMUROIDEA. | | | | | | | | | | | | | Fam. Chiromyidæ |-- |-- |-- |-- |-- |-- |-- |-- |-- | -- | -- | -- | -- ,, Tarsiidæ |-- |-- |-- |-- |-- |-- |-- |-- |-- | -- | -- | -- | -- ,, Megaladapidæ |-- |-- |-- |-- |-- |-- |-- |-- |-- | -- | -- | -- | -- ,, Lemuridæ |-- |-- |-- |-- |-- |-- |-- |-- |-- | -- | -- | -- | -- ,, Anaptomorphidæ | 2 | 1 |-- |-- |-- |-- |-- |-- |-- | -- | -- | -- | -- ,, Adapidæ | 2 | 3 | 3 |-- |-- |-- |-- |-- |-- | -- | -- | -- | -- | | | | | | | | | | | | | ANTHROPOIDEA. | | | | | | | | | | | | | Fam. Hapalidæ |-- |-- |-- |-- |-- |-- |-- |-- |-- | -- | -- | -- | -- ,, Cebidæ |-- |-- |-- |-- |-- |-- |-- |-- |-- | -- | -- | -- | -- ,, Cercopithecidæ |-- |-- |-- |-- | 2 | 1 | 1 | 4 | 1 | 2 | 2 | 1 | 3 ,, Simiidæ |-- |-- |-- |-- | 2 |-- |-- | 1 |-- | -- | -- | -- | -- ,, Hominidæ |-- |-- |-- |-- | ? |-- |-- | ? |-- | 1 | 1 | 1 | 1 ------------------+---+---+---+---+---+---+---+---+---+----+----+----+--- {231}_B._ ETHIOPIAN REGION. Column headings L: Lower. M: Middle. U: Upper. P: Pleistocene. R: Recent. G: Genus. S: Species.