Belongs within: Lemuriformes.
The Lemuridae contains the typical lemurs, mostly arboreal forms with the most terrestrial being the ring-tailed lemur Lemur catta. Lemurids have a dental formula of i2/2 c1/1 p3/3 m3/3, with the lower canines and incisors forming a forward-projecting comb. The forelimbs are approximately 67-70% the length of the hindlimbs (Pollock et al. 1984). The ruffed lemurs of the genus Varecia are large, heavily built species with low-cusped, wide-basined molars and a contrasting colour pattern (Groves 1991).
<==Lemuridae [Lemurinae]G91
|--Varecia Gray 1863FS15, SKS05 [Vareciinae]
| |--V. rubraFS15 [=V. variegata rubraY94]
| `--V. variegataFS15 [=Lemur variegatusG91; incl. V. variegata editorumG91, V. variegata subcinctaG91]
`--+--Prolemur simusFS15
|--Eulemur Simons & Rumpler 1988FS15, G91 [incl. Petterus Groves & Eaglen 1988G91]
| |--E. rubriventerFS15 [=Lemur rubriventerG91]
| `--+--+--E. coronatusFS15 [=Lemur coronatusG91]
| | `--E. macaco (Linnaeus 1766)FS15, SKS05 [=Lemur macacoG91; incl. L. leucomystax Bartlett 1862S66]
| | |--E. m. macacoG91
| | `--E. m. flavifronsG91 [=Lemur macaco flavifronsBP87]
| `--+--*E. mongoz (Linnaeus 1766)G91, FS15, SKS05 [=Lemur mongozG91]
| `--+--+--E. rufusFS15 [=E. fulvus rufusY94, Lemur fulvus rufusPRM84]
| | `--+--E. cinereicepsFS15
| | `--E. collarisFS15 [=E. fulvus collarisG91, Lemur fulvus collarisPRM84, L. macaco collarisW78]
| `--+--E. fulvusFS15 [=Lemur fulvusG91, *Petterus fulvusG91]
| | |--E. f. fulvusG91
| | |--E. f. albocollarisG91 [=Lemur fulvus albocollarisPRM84]
| | `--‘Lemur’ f. mayottensisPRM84
| `--+--E. albifronsFS15 [=E. fulvus albifronsG91, Lemur fulvus albifronsPRM84]
| `--+--E. rufifronsFS15
| `--E. sanfordiFS15 [=E. fulvus sanfordiG91, Lemur fulvus sanfordiBP87]
`--+--‘Hapalemur’ simusOC08 [incl. Prohapalemur gallieniG91]
`--+--Lemur Linnaeus 1758FS15, L58 [=Prosimia Scopoli 1762G91]
| |--*L. catta Linnaeus 1758G91, L58 [=*Prosimia cattaG91]
| |--L. gracilisC00
| |--L. pusillus Geoffroy 1796G96a
| |--L. spectrum [incl. Didelphis macrotarsus]G96b
| |--L. tardigradus Linnaeus 1758L58
| |--L. variusT99
| `--L. volans Linnaeus 1758L58
`--+--Pachylemur Lamberton 1948FS15, AC98 [incl. Palaeochirogalus Grandidier 1899AC98]
| |--*P. insignis (Filhol 1895) [incl. P. intermedius Grandidier 1899, P. jullyi Grandidier 1899]AC98
| `--P. ‘jullyi’ (Standing 1904) non Grandidier 1899 [=Lemur jullyi]AC98
`--Hapalemur [Hapalemurinae]FS15
|--H. aureusFS15
`--+--H. occidentalisFS15 [=H. griseus occidentalisG91]
`--+--H. meridionalisFS15
`--+--H. alaotrensisFS15 [=H. griseus alaotrensisG91]
`--H. griseusFS15
*Type species of generic name indicated
References
[AC98] Alcover, J. A., X. Campillo, M. Macias & A. Sans. 1998. Mammal species of the world: additional data on insular mammals. American Museum Novitates 3248: 1–29.
[BP87] Burton, J. A., & B. Pearson. 1987. Collins Guide to the Rare Mammals of the World. Collins: London.
[C00] Carlisle, M. 1800. Sur la disposition des vaisseaux sanguins dans le Lemur tardigradus. Bulletin des Sciences, par la Societé Philomathique de Paris 2 (38): 108.
[FS15] Faurby, S., & J.-C. Svenning. 2015. A species-level phylogeny of all extant and late Quaternary extinct mammals using a novel heuristic-hierarchical Bayesian approach. Molecular Phylogenetics and Evolution 84: 14–26.
[G96a] Geoffroy, É. L. 1796a. Observations sur une petite espèce de mahi, (Lemur Linn). Bulletin de la Société Philomatique, a ses Correspondans 45: 1–2.
[G96b] Geoffroy, É. L. 1796b. Sur le galago. Bulletin de la Société Philomatique, a ses Correspondans 48–49: 1–2.
[G91] Groves, C. P. 1991. A Theory of Human and Primate Evolution revised ed. Clarendon Press: Oxford.
[L58] Linnaeus, C. 1758. Systema Naturae per Regna Tria Naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. Tomus I. Editio decima, reformata. Laurentii Salvii: Holmiae.
[OC08] Orlando, L., S. Calvignac, C. Schnebelen, C. J. Douady, L. R. Godfrey & C. Hänni. 2008. DNA from extant giant lemurs links archaeolemurids to extant indriids. BMC Evolutionary Biology 8: 121.
[PRM84] Pollock, J. I., A. F. Richard & R. D. Martin. 1984. Lemurs. In: Macdonald, D. (ed.) All the World’s Animals: Primates pp. 24–35. Torstar Books: New York.
[SKS05] Scherf, H., B. Koller & F. Schrenk. 2005. Locomotion-related structures in the femoral trabecular architecture of primates and insectivores (Mammalia, Primates and Insectivora). Senckenbergiana Biologica 85 (1): 101–112.
[S66] Sclater, P. L. 1866. Remarks on Lemur leucomystax, Bartlett. Proceedings of the Zoological Society of London 1866: 1–2.
[T99] Tandler, J. 1899. Zur vergleichenden Anatomie der Kopfarterien bei den Mammalia. Denkschriften der Kaiserlichen Akademie der Wissenschaften, Mathematische-Naturwissenschaftliche Klasse, Wien 67: 677–784, pls 1–8.
[W78] White, M. J. D. 1978. Chain processes in chromosomal speciation. Systematic Zoology 27 (3): 285–298.
[Y94] Yoder, A. D. 1994. Relative position of the Cheirogaleidae in strepsirhine phylogeny: a comparison of morphological and molecular methods and results. American Journal of Physical Anthropology 94: 25–46.