This morphology is reminiscent of the present day " Propithecus " genus.
2.
Coquerel's sifaka ( " Propithecus coquereli " ) was previously found at this site but has since been extirpated.
3.
He noted that the animal had characteristics of both " Palaeopropithecus " and the living sifakas ( " Propithecus " ).
4.
Richard is best known for her studies of the sifaka ( " Propithecus verreauxi " ), a lemur of southern and western Madagascar.
5.
Verreaux's sifaka ( " Propithecus verreauxi " ) is of most concern to the IUCN which is considered to be near threatened.
6.
Additional elevations of all remaining subspecies within the " Eulemur " and " Propithecus " genera were made in the years that followed.
7.
One of the lemurs, the silky sifaka ( " Propithecus candidus " ) is listed among " The World's 25 Most Endangered Primates ".
8.
The other three members of this group are the diademed sifaka, Perrier's sifaka, and Milne-Edwards'sifaka ( " Propithecus edwardsi " ).
9.
The silky sifaka is one of nine sifaka species ( genus " Propithecus " ), and one of four former subspecies of diademed sifaka ( " P . diadema " ).
10.
A 2009 publication, however, reported a detailed observation of cooperative hunting, wherein three male fossas hunted a sifaka ( " Propithecus verreauxi " ) for 45 minutes, and subsequently shared the prey.