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Notharctus Temporal range: Early-Mid Eocene (Wasatchian-Uintan) ~50.3–40.4 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Notharctus tenebrosus
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Primates
Suborder:	Strepsirrhini
Family:	†Notharctidae
Subfamily:	†Notharctinae
Genus:	†Notharctus Leidy, 1870
Species
†N. pugnax †N. robustior †N. tenebrosus †N. venticolus
Synonyms
Hipposyus Leidy 1872 Limnotherium Marsh 1871 Telmalestes Marsh 1872 Thinolestes Marsh 1872 Tomitherium Cope 1872

Notharctus is a genus of adapiform primate that lived in North America and Europe during the late to middle Eocene.

The body form of Notharctus is similar to that of modern rats. Its fingers were elongated for clamping onto branches, including the development of a thumb. Its spine is flexible and the animal was about 40 centimetres (16 in) in length, excluding the long tail.

There were at least four different Notharctus species. Fossils from at least seven other potential species have also been discovered.

References

1. ^ Gebo 2002, p. 25.
2. Palmer, D., ed. (1999). The Marshall Illustrated Encyclopedia of Dinosaurs and Prehistoric Animals. London: Marshall Editions. p. 287. ISBN 1-84028-152-9.

Bibliography

• Gebo, D.L. (2002). "Adapiformes: Phylogeny and adaptation". In Hartwig, W.C. (ed.). The Primate Fossil Record. Cambridge University Press. ISBN 978-0-521-08141-2. OCLC 47254191.

External links

• Mikko's Phylogeny Archive

v t e Strepsirrhini
Kingdom: Animalia Phylum: Chordata Class: Mammalia Order: Primates
Strepsirrhini Strepsirrhini †Plesiopithecus †Sulaimanius †Notharctidae Cantius Copelemur Hesperolemur Notharctus Pelycodus Smilodectes †Ekgmowechashalidae Bugtilemur Ekgmowechashala Gatanthropus Muangthanhinius Palaeohodites †Cercamoniidae Agerinia Anchomomys Barnesia Buxella Donrussellia Mazateronodon Nievesia Panobius Periconodon Pronycticebus Protoadapis †Adapidae Adapis Cryptadapis Leptadapis Magnadapis Microadapis Palaeolemur †Asiadapidae Asiadapis Marcgodinotius †Sivaladapidae Anthradapis Guangxilemur Kyitchaungia Laomaki Paukkaungia Yunnanadapis Hoanghoniinae Hoanghonius Lushius Rencunius Wailekia Sivaladapinae Indraloris Ramadapis Siamoadapis Sinoadapis Sivaladapis †Caenopithecidae Adapoides Afradapis Aframonius Caenopithecus Darwinius Europolemur Godinotia Mahgarita Masradapis Mescalerolemur Namadapis Notnamaia? †Azibiidae Algeripithecus Azibius †Djebelemuridae Djebelemur Notnamaia? Omanodon Shizarodon Lemuriformes see below↓
Lemuriformes Lorisoidea †Karanisia? †Saharagalago Galagidae Euoticus Galago Galagoides †Komba †Laetolia Otolemur Paragalago †Progalago †Saharagalago? Sciurocheirus †Wadilemur Lorisidae †Mioeuoticus †Namaloris Lorisinae Loris †Nycticeboides Nycticebus Xanthonycticebus Perodicticinae Arctocebus Perodicticus Pseudopotto Lemuroidea Daubentonia Lepilemur †Megaladapis †Plesiopithecus? †Propotto Cheirogaleidae Allocebus Cheirogaleus Microcebus Mirza Phaner Lemuridae Eulemur Hapalemur Lemur †Pachylemur Varecia †Archaeolemuridae Archaeolemur Hadropithecus Indriidae Avahi Indri Propithecus †Palaeopropithecidae Archaeoindris Babakotia Mesopropithecus Palaeopropithecus
See also: Adapiformes Subfossil lemur

• Notharctinae
• Prehistoric primate genera
• Eocene primates
• Ypresian life
• Lutetian life
• Bartonian life
• Wasatchian
• Bridgerian
• Uintan
• Eocene mammals of North America
• Fossils of the United States
• Paleontology in Colorado
• Paleontology in Nevada
• Paleontology in New Mexico
• Paleontology in Texas
• Paleontology in Utah
• Paleontology in Wyoming
• Fossil taxa described in 1870
• Taxa named by Joseph Leidy