The diets of most subfossil lemurs, most notably " Palaeopropithecus " and " Megaladapis ", consisted primarily of C 4 plants, which use more water-efficient forms of photosynthesis.
22.
Postcranial remains of " Palaeopropithecus " had previously been paired with " Megaladapis " by Guillaume Grandidier, who viewed it as a giant tree sloth, which he named " Bradytherium ".
23.
The main difference between Megaladapis and Lepidolemur is that the outer crown-surface of Lepidolemur s molars forms nearly a straight line, almost parallel with the long axis of the skull, and the outer side is slightly concave inwards.
24.
Despite the taxonomic clarification, subfossil postcrania from different genera, particularly " Megaladapis ", " Palaeopropithecus " and " Hadropithecus ", continued to be incorrectly paired and sometimes assigned to non-primates.
25.
These features already put them at an evolutionary disadvantage; " Megaladapis " ( along with the other species of giant lemur ) were more susceptible to predators ( humans more specifically ), forest fires, and habitat destruction due to these traits.
26.
Following its initial discovery, some subfossil remains of " Megaladapis grandidieri " ( a type of extinct koala lemur ) were mistakenly associated with " Archaeoindris ", while smaller leg bones from a juvenile and a massive adult leg bone were erroneously assumed to belong to two separate species.
27.
However, the size may have been exaggerated, and the " round head and a human face " would not match " Megaladapis ", which had an enlarged snout and eyes that did not face entirely forward . " Megaladapis " had the least forward-facing eyes of all primates.
28.
However, the size may have been exaggerated, and the " round head and a human face " would not match " Megaladapis ", which had an enlarged snout and eyes that did not face entirely forward . " Megaladapis " had the least forward-facing eyes of all primates.
29.
He studied the lemur fauna, both extant and extinct, discovered the new family Megaladapidae ( Major 1893 ), genus and species of the extinct giant lemur " Megaladapis madagascariensis " ( Major 1893 ), and five new species in the genera " Lepilemur " and " Cheirogaleus ".
