| | {Rodent dentition | | ----------------------+------------------------+-------------------------- | | II | | {5. ARCTOPITHECA+ SIMIAE | { 3. PLATYRRHINAE | { Apes | { Flat-nosed apes | {Dent. 32=2.1.3.2/2.1.3.2 (_Pitheci_ or | { _Hesperopitheca_ | {Nail on hallux only _simiales_) | { Western apes | { Orbits completely | { (American) | {6. DYSMOPITHECA+ separated from the | { Nostrils lateral, | { temporal depression | { with wide partition | {Dent. 36=2.1.3.3/2.1.3.3 by a bony septum. | { 3 premolars | {Nails on all fingers Womb simple, pear- | { | shaped. Placenta | { | {7. CYNOPITHECA+ discoid, deciduate. | { | { Cerebrum relatively | { | {Dent 32=2.1.2.3/2.1.2.3 large and much | { | {Generally with tail furrowed. | { 4. CATARRHINAE | {and cheek-pouches | { Narrow-nosed | {Sacrum with 3 or | { apes | {4 vertebræ | { _Eopitheca_ | { | { Eastern apes | {8. ANTHROPOMORPHA+ | { (Arctogoea) | { | { Europe, Asia, and | {Dent. 32=2.1.2.3/2.1.2.3 | { Africa. | {No tail or cheek-pouches | { Nostrils forward, | {Sacrum with 5 | { with narrow septum | {vertebræ | { 2 premolars | | { Nails on all | | { fingers | | | ----------------------+------------------------+--------------------------