The main difference between prosimians and anthropoids is that prosimians room primitive primates that are tiny in size, and bushbabies that Africa, the lemurs the Madagascar, and the lorises, pottos, and also tarsiers of southeast Asia, whereas anthropoids are bigger-brained monkeys, apes, and also humans. Furthermore, prosimians showed up around 55 million years ago, if anthropoids appeared around 35 million years ago. Moreover, prosimians space nocturnal while anthropoids room diurnal. 

In brief, prosimians and also anthropoids room two groups of primates descended from tree-dwellers. Generally, they show adaptations come brachiation such together the rotating shoulder joint, a huge toe and thumb that room widely separated from various other toes or fingers, and stereoscopic vision. 

Key areas Covered 

1. Prosimians – Taxonomy, Characteristics, Behavior2. Anthropoids – Taxonomy, Characteristics, Behavior3. What space the Similarities in between Prosimians and also Anthropoids – outline of typical Features4. What is the Difference in between Prosimians and also Anthropoids – comparison of an essential Differences

Key Terms 

Anthropoids, Haplorhini, Nocturnal, Primates, Prosimians, Strepsirrhini


Prosimians – Taxonomy, Characteristics, Behavior 

Prosimians room the primitive primates whose members belong to both Strepsirrhini and Haplorhini suborders of the stimulate Primates. They encompass four infraorders, 2 from every suborder. The 2 infraorders from the suborder Strepsirrhini encompass Lemuriformes (lemurs, lorises, and also bushbabies) and Adapiformes (extinct “lemur-like” primates). And, the two infraorders indigenous the suborder Haplorhini encompass Tarsiiformes (tarsiers) and Omomyiformes (extinct “tarsier-like” primates). 

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Figure 1: Brown Lemur

Of these, if you take it strepsirrhines, lock have small brains in to compare to your body size. However, their brains also have huge olfactory lobes, which provide an boosted sense that smell. In enhancement to this features, they also can feeling pheromones v their vomeronasal organ. Also, they have actually increased night vision because of the visibility of a reflective layer. In the case of lemuriforms, they have actually a toothcomb, a dedicated set of this in the front, reduced parts the the mouth are largely used for combing fur. Top top the other hand, one of the crucial features that prosimians is the existence of 2 laterally planarization toilet claws provided for grooming. Besides, lemurs and lorises use the second toe because that the objective while tarsiers use 2nd and 3rd toes.

Anthropoids – Taxonomy, Characteristics, Behavior 

Anthropoids space the greater primates, excluding prosimians. Generally, castle are additionally known as simians. However, castle belong come the infraorder Simiiformes or flat-nosed primates under the suborder Strepsirrhini that the bespeak Primates. Meanwhile, the 2 parvorders the anthropoids are Patyrrhini and Catarrhini. Of these two, the parvorder Patyrrhini includes brand-new World monkeys while the parvorder Catarrhini includes the two superfamilies: Cercopithecoidea (Old civilization monkeys) and Hominoidea (apes), consisting of the genus Homo. New World monkeys originated 40 million years earlier in south America, if the remaining simians separation into Old world monkeys and also apes around 25 million years ago. 


Figure 2: A Catarrhine (Chimpanzee) and also A Platyrrhine (Red-Faced Spider Monkey)

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Moreover, platyrrhines include flat-nosed primates when catarrhines incorporate hooked-nose primates. Also, the nostrils of platyrrhines room farther apart and they allude outward when the nostrils of catarrhines room closer together and they suggest down. In addition to this featural differences, platyrrhines have actually a large body size in comparison come catarrhines. Besides, the new World primates of the family Atelidae are the just primates having actually a prehensile tail. In comparison to this, Old World chimpanzees have shorter, non-grasping tails while apes lack tails.  

Similarities in between Prosimians and Anthropoids  

Prosimians and anthropoids space the two teams that make up the order  Primates.  They descended from tree-dwellers. Therefore, they have actually an arboreal lifestyle.    Thus, they display adaptations to brachiation such as the rotating shoulder joint, a big toe and also thumb that space widely separated from other toes or fingers, and also stereoscopic vision.  Other significant characteristics encompass increased brain size, intuitive acuity, color vision,  transformed shoulder girdle,  and dexterous hands.    They have four limbs.    In addition to these, they have actually claws modified right into flattened nails and a trend towards holding the human body upright.    They take it a longer time to mature and have longer lifespans.  Moreover, they space sexually dimorphic through differences, consisting of muscle mass, fat distribution, pelvic width,  canine this size, hair distribution, and also coloration.   Typically,  they develop only one offspring every pregnancy.  Their gestation time is long, v an extended period of juvenile expansion and period of maternal investment and care.  They space omnivores, consuming small invertebrates, fruits, and also plants.  

Difference in between Prosimians and Anthropoids 


Prosimians describe the primitive primates characterized by nocturnal habitats, a long confront with a moist snout, etc. While anthropoids refer to the primates defined by a fairly flat face, dried nose, etc. 

Classification – Suborders 

Moreover, Prosimians belong come both Strepsirrhini and also Haplorhini suborders while anthropoids belong come the suborder Haplorhini. 

Classification – Infraorders 

Prosimians belong to the four infraorders: Tarsiiformes, Omomyiformes, Adapiformes, and Lemuriformes if anthropoids belong to the infraorder Simiiformes. 


Prosimians include the bushbabies of Africa, the lemurs of Madagascar, and also the lorises, pottos, and tarsiers of southeast Asia if anthropoids include brand-new World monkeys, Old civilization monkeys, apes, and humans. 

Time the Evolution 

While prosimians appeared around 55 million year ago, anthropoids showed up around 35 million years ago. 

Degree of Evolution 

Prosimians are reasonably lower primates while anthropoids are greater primates. 


Furthermore, prosimians are largely arboreal if anthropoids deserve to be one of two people arboreal or terrestrial.   


Prosimians have a long confront with a moist snout, influential whiskers, big mobile ears, and also large, contempt sideways-facing eye while anthropoids have actually a relatively flat face, dried nose, small immobile ears, and forward-facing eyes.  

Brain Size 

In addition, prosimians have reasonably small mind sizes while anthropoids have huge brains. 


Prosimians have no key separating orbit native temporal fossa while anthropoids have actually a bowl separating orbit from temporal fossa.  


Moreover, prosimians have actually lower incisors developing a toothcomb if anthropoids do not have a toothcomb.   

Rely on Senses 

Whereas prosimians largely rely on the smell, anthropoids mostly rely ~ above vision. 

Production that Vitamin C 

Non-tarsier prosimians are qualified of creating vitamin C in your body while anthropoids room unable to developing vitamin C. 

Active Period 

Prosimians are nocturnal while anthropoids room diurnal. 


Prosimians space the relatively primitive group of primates defined by the visibility of a lengthy face, moist snout, and large, contempt sideways-facing eyes. They use toothcomb and also rely top top smell quite than vision together in greater primates. In addition, lock have relatively small brains. Prosimians such together bushbabies, lemurs, lorises, pottos, and also tarsiers room nocturnal. In comparison, anthropoids are the higher primates characterized by the visibility of a flat face, dried nose, and forward-facing eyes. They have large brains and also are active during the day time. Also, they often tend to be much more terrestrial than arboreal. Typically, anthropoids include new World monkeys, Old people monkeys, apes, and also humans. Therefore, the key difference in between prosimians and also anthropoids is your characteristics and also behavior. 


1. “The advancement of Primates | biology II.” Lumen, available Here.

Image Courtesy:

1. “Brown Lemur in Andasibe” through David Dennis – originally posted to Flickr together Brown Lemur in Andasibe (CC BY-SA 2.0) via Commons Wikimedia 2. “Old & brand-new World monkey faces” (CC by 2.0) via Commons Wikimedia