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Archaeoindris fontoynontii is an extinct giant lemur and the largest primate known to have evolved on Madagascar, comparable in size to a male gorilla.It belonged to a family of extinct lemurs known as "sloth lemurs" (Palaeopropithecidae) and, because of its extremely large size, it has been compared to the ground sloths that once roamed North and South America.
[citation needed] It had the largest body size of any lemur, with double the body mass of the next largest extinct lemur. [specify] An endocast of its skull showed that it had a brain capacity of about 250 cc, about 3 to 4 times the size of a domestic cat's, [10] which is small for its size when compared to other lemurs. [7]
Archaeolemur is an extinct genus of subfossil lemurs known from the Quaternary of Madagascar. [3] Archaeolemur is one of the most common and well-known of the extinct giant lemurs as hundreds of its bones have been discovered in fossil deposits across the island.
Archaeoindris fontoynontii is an extinct, giant lemur and the largest primate known to have evolved on Madagascar, comparable in size to a male gorilla.It belonged to a family of extinct lemurs known as "sloth lemurs" (Palaeopropithecidae), and because of its extremely large size, it has been compared to the extinct ground sloths of North and South America.
Coquerel's giant mouse lemur. M. coquereli Grandidier, 1867: Western Madagascar: Size: 23–27 cm (9–11 in) long, plus 31–32 cm (12–13 in) tail [70] Habitat: Forest [71] Diet: Fruit, flowers, and invertebrates, as well as small vertebrates [70] EN Unknown [71] Northern giant mouse lemur. M. zaza Kappeler & Roos, 2005: Northern Madagascar
Ranging in size from the 30 g (1.1 oz) Madame Berthe's mouse lemur, the world's smallest primate, [48] to the extinct 160–200 kg (350–440 lb) Archaeoindris fontoynonti, [49] lemurs evolved diverse forms of locomotion, varying levels of social complexity, and unique adaptations to the local climate.
The diversity of subfossil lemur communities was higher than that of present-day lemur communities, ranging as high as 20 or more species per location, compared to 10 to 12 species today. Extinct species ranged in size from slightly over 10 kg (22 lb) to roughly 200 kg (440 lb).
Because its eyes were comparable in size to those of modern day-living lemurs, Pachylemur was probably diurnal as well, as were most of the giant, extinct lemurs. However, compared to similarly sized anthropoid primates, its visual acuity was relatively poor. [43]