slay

Purple

Post orbital bar

Blue

Convergent eyes

Green

Short snout

Red

Rounded brain case

Cranial traits of primates

Rounded brain case, convergent eyes, post orbital bar, shorter snout

Pink

Grooming claw

Post cranial key traits

Five digits(pentadactyly), a functioning clavicle, grasping hands and feet,nails and tactile pads(seen on distal finger tuft)

Old world monkey molar type

Biphodont molars

What type is this

Biphodont-In old world monkeys

Y 5 molars

Ancestral type of apes

Biphodont diet

Plant based

Y 5 diet

Fruit based or generalist

Type

Y 5

2133

Dentition formula of tarsiers, most Strepsirhines and new world monkeys

2132

Dental form marmosets and Tamarain

2123

Humans apes and old world monkeys

2133

2132

2123

Strepsirhines have postorbital

Bar

Cattarhines have post orbital

Plates

Arrow points to

Postorbital plate

Arrow points to

Post orbital bar

Type

Cattarhine

Type

Strepsirhine

Red

Metopic suture

Yellow orange

Postorbital bar

Blue

Longer snout Strepsirhine

Orange

Post orbital bars

Nuchal crest

What is a nuchal crest?

A cresting on the back of the head lateral

Nuchal crest is an example of a trait that is ____________

Sexuallly dimorphism

Saggital crest is

sexually dimorphic

Pink

Saggital crest

Vertical clinging and leaping

Longer legs than arms, long lower

backs, and long fingers and toes and

elongated ankle bones to help them

push off when leaping.

Two examples of quadrupedal primates. Left is a typical arboreal quadruped with shorter

arms and legs, longer fingers and toes, and a long tail. Right is a terrestrial quadruped

with relatively long arms and legs, shorter fingers and toes, and a short tail

Arboreal or terrestrial quadrepedalism

Brachiator

The glenoid fossa of the scapula is oriented upwards.

Thumbs are small

The phalangesare long and hook-like.

The arms are much longer and more powerful than the legs

What type of locomotion?

Brachiator

What type of locomotion

Vertical clinging and leaping

What type of locomotion

Terrestrial or arboreal quadrupedalism

Pink

Prehensile tail