L9 Primates Flashcards
primates are part of which clade?
Euarchontoglires
Which orders are most closely related to Primates?
Scadentia(Flying Lemurs (Colugo) and Dermoptera (Tree Shrews)
Which order is THE closest relation to primates?
Scandentia (Flying Lemurs/Colugo)
Do all primates have opposable digits/
no
What type of vision do they have
Binocular, stereoscopic vision
What is binocular stereoscopic vision?
Ability to view distance and depth
What is the postorbital bar and in which types of primates have it?
bone which runs around the eyesocket of strepsirrhine primates. This is in contrast to the higher primates, haplorrhine, which have evolved fully enclosed sockets to protect their eyes
Give one example with a postorbital bar
Ruffed lemur
Are primates heterodont
Yes - They have different teeth
What are the suborders of primates?
Strepsirrhini and Haplorrhini
What is the difference between Stepsirhini and Haplorrhini?
Nose morphology - Strepsirhini have rhinarium nose. Haplorrhini lack a rhinarium nose. Reproductuon - Strepsirhini have a bicornuate uterus, Haplorrhini have a simplex uterus Strepsirhini also have comb-like front teeth.
What type of nose it this and which suborder of primates would you find it?
Rhinarium - belonging to the Strepsirrhini suborder
what is characteristic for strepsirrhini
Comb like teeth and and rhonarium nose
What suborder belongs to strepsirhini?
Lemurs and lorises = Lemuriformes
Which suborders belong to the haplorhirri
Tarsiiformes ( tarsiers) and simiiformes (Higher primates)
What is this and what suborder or primates does it belong?
Tarsier/Tarsiiforme –> Haplorhirrini
What are the Aotidae?
Night monkey
