What do the catarrhines include?

What do the catarrhines include?

Catarrhines include gibbons, orangutans, gorillas, chimpanzees, and humans. Two superfamilies that make up the parvorder Catarrhini are Cercopithecoidea (Old World monkeys) and Hominoidea (apes). Scientific classification: Kingdom: Animalia.

What is the difference between catarrhines and platyrrhines?

Catarrhines and platyrrhines are distinguished by the shape of their nostrils. Catarrhines have narrow downward facing nostrils, while platyrrhines have broad, flat, sideways facing nostrils. There are certain physical features that help set primates apart from other animals.

Who are the members of the infraorder Catarrhini?

FEEDBACK: The infraorder Catarrhini includes the apes and Old World monkeys. The infraorder Platyrrhini are the New World monkeys.

What is ancestral to catarrhines?

Saadanius is a genus of fossil primate dating to the Oligocene that is closely related to the common ancestor of the Old World monkeys and apes, collectively known as catarrhines. However, it had a bony ectotympanic and teeth comparable to those of living catarrhines. …

Is a spider monkey a Catarrhine?

Spider monkey, (genus Ateles), large, extremely agile monkey that lives in forests from southern Mexico through Central and South America to Brazil. In spite of its thumbless hands, this lanky potbellied primate can move swiftly through the trees, using its long tail as a fifth limb.

Do monkeys have thumbs on their feet?

Primates have five fingers on their hand and five toes on their feet. The hands and feet of all primates, except for humans, are designed for grasping. Humans have hands designed for grasping, but not feet! Humans have opposable thumbs.

Which is sister of Cercopithecoidea or crown Catharrhini?

Below is a cladogram with extinct species in which the crown Catharrhini, which emerged in the Propliopithecoidea. Also, Saadanioidea is sister of the Cercopithecoidea rather than of the Crown Catarrhini here. It is indicated how many million years ago (Mya) the clades diverged into newer clades.

What is the dental formula for a catarrhine?

Catarrhines also never have prehensile tails, and have flat fingernails and toenails, a tubular ectotympanic (ear bone), and eight, not 12, premolars, giving them a dental formula of: 2.1.2.3 2.1.2.3. Most catarrhine species show considerable sexual dimorphism and do not form a pair bond. Most, but not all, species live in social groups.

How are Catarrhini different from the platyrrhines?

The Catarrhini are all native to Africa and Asia. Members of this parvorder are called catarrhines . The technical distinction between the New World platyrrhines and Old World catarrhines is the shape of their noses. The platyrrhines (from Ancient Greek platu-, “flat”, and rhin-, “nose”) have nostrils which face sideways.

How many prehensile tails does a catarrhine have?

The catarrhines (from Ancient Greek kata-, “down”, and rhin-, “nose”) have nostrils that face downwards. Catarrhines also never have prehensile tails, and have flat fingernails and toenails, a tubular ectotympanic (ear bone), and eight, not 12, premolars, giving them a dental formula of: 2.1.2.3 2.1.2.3.