Ptilocercus

Ptilocercus Temporal range: 34–0 Ma PreꞒ Ꞓ O S D C P T J K Pg N Early Oligocene - Present
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Scandentia
Family:	Ptilocercidae Lyon, 1913
Genus:	Ptilocercus J. E. Gray, 1848
Type species
Ptilocercus lowii J. E. Gray, 1848
Species
Ptilocercus lowii †Ptilocercus kylin

Ptilocercus is a genus of treeshrew and the sole member of the family Ptilocercidae.

Taxonomy

Today the genus (and family) is represented by a single species, the pen-tailed treeshrew (Ptilocercus lowii). However, this genus is very ancient and considered the most primitive of all the treeshrews. In 2016 a new species was described from China dated to the Early Oligocene about 34 million years ago. This species, Ptilocercus kylin, is so strikingly similar to the living species that it can be considered a sister taxa. This suggests that the Ptilocercidae have evolved little change over millions of years.^[1][2]

References

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Euarchontoglires

• Kingdom: Animalia
• Phylum: Chordata
• Class: Mammalia
• Subclass: Theria
• Infraclass: Placentalia

Euarchontoglires
†Apatemyidae? Aethomylos Apatemys Asiapator Carcinella Frugivastodon Heterohyus Jepsenella Labidolemur Sinclairella Unuchinia †Picrodontidae? Draconodus Picrodus Zanycteris Gliriformes †Apatemyidae? †Picrodontidae? †Zalambdalestidae? †Anagalidae Anagale Anagalopsis Anaptogale Chianshania Diacronus Eosigale Hsiuannania Huaiyangale Interogale Linnania Qipania Stenanagale Wanogale Zofiagale †Arctostylopidae? Allostylops Anatolostylops Arctostylops Asiostylops Bothriostylops Enantiostylops Kazachostylops Migrostylops Palaeostylops Sinostylops Stenostylops Wanostylops †Astigalidae Astigale Yupingale Zhujegale †Pseudictopidae Allictops Anictops Cartictops Haltictops Paranictops Pseudictops Suyinia Glires Duplicidentata Simplicidentata Euarchonta Scandentia Ptilocercus Tupaiidae Anathana Dendrogale †Palaeotupaia †Prodendrogale †Sivatupaia Tupaia Primatomorpha Dermoptera †Mixodectidae? Dracontolestes Eudaemonema Mixodectes †Plagiomenidae? Ellesmene Plagiomene Planetetherium Worlandia Cynocephalidae Cynocephalus †Dermotherium Galeopterus Pan-Primates see below↓

Pan-Primates
Pan-Primates †Asioplesiadapis †Pandemonium †Russellodon †Picrodontidae? †Purgatoriidae? Purgatorius Ursolestes †Micromomyidae Chalicomomys Dryomomys Foxomomys Micromomys Tinimomys †Picromomyidae Alveojunctus Picromomys †Microsyopidae Arctodontomys Bartelsia Berruvius Choctawius Craseops Megadelphus Microsyops Nanomomys Navajovius Niptomomys Uintasorex †Toliapinidae Avenius Toliapina †Paromomyoidea Paromomyidae Acidomomys Arcius Edworthia Elwynella Ignacius Paromomys Phenacolemur Palaechthonidae Anasazia Palaechthon Palenochtha Phoxomylus Plesiolestes Premnoides Talpohenach Torrejonia †Plesiadapoidea Chronolestes Plesiadapidae Chiromyoides Nannodectes Platychoerops Plesiadapis Pronothodectes Carpolestidae Carpocristes Carpodaptes Carpolestes Carpomegodon Elphidotarsius Saxonella Subengius Crown-Primates Strepsirrhini see Strepsirrhini Haplorhini see Haplorhini

• See also: Anagaloidea
• Plesiadapiformes
• Category

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