Plesiadapiformes

Plesiadapiformes Temporal range: Paleocene-Eocene, 65–55 Ma PreЄ Є O S D C P T J K Pg N
Plesiadapis
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Mirorder:	Primatomorpha
Order:	†Plesiadapiformes
Families
Micromomyidae Paromomyidae Picromomyidae Palaechthonidae Picrodontidae Microsyopidae Chronolestidae Plesiadapidae Carpolestidae

Plesiadapiformes ("Adapid-like" or "near Adapiformes") is an extinct (and possibly paraphyletic or polyphyletic^[1][2][3]) order of mammals. The group is either closely related to the primates or a precursor to them. Many are too derived to be ancestral to primates, but the earliest Plesiadapiformes had teeth that are strongly indicative of a common ancestor. Purgatorius is believed to be close to the last common ancestor of primates and Plesiadapiformes.

Plesiadapiformes first appear in the fossil record between 65 and 55 million years ago,^[4] although many were extinct by the beginning of the Eocene. They may have been the first mammals to have finger nails in place of claws.^[5]

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Euarchontoglires	Glires   Rodentia (rodents)     Lagomorpha (rabbits, hares, pikas)     Euarchonta   Scandentia (treeshrews)   Primatomorpha   Dermoptera (colugos)       †Plesiadapiformes     Primates

One possible classification table of plesiadapiform families is listed below.

• 
  ORDER PLESIADAPIFORMES
  
  
  
  • Family Micromomyidae
    
  
  
  • Superfamily Paromomyoidea
    
    
    
    • Family Paromomyidae
      
    
    
    • Family Picromomyidae
      
    
    
    • Family Palaechthonidae
      
    
    
    • Family Picrodontidae
      
    
    
    • Family Microsyopidae
      
    
    
    
    
  
  
  • Superfamily Plesiadapoidea
    
    
    
    • Family Chronolestidae
      
    
    
    • Family Plesiadapidae
      
    
    
    
    
  
  
  • Superfamily Carpolestoidea
    
    • Family Carpolestidae
      
    
    
  
  
  
  

References

1. 
   ^ Henke, Winfried; Tattersall, Ian; Hardt, Thorolf (2007). Handbook of Paleoanthropology: Vol I:Principles, Methods and Approaches Vol II:Primate Evolution and Human Origins Vol III:Phylogeny of Hominids. Springer Science & Business Media. p. 839. ISBN 978-3-540-32474-4. Retrieved 25 January 2015..mw-parser-output cite.citation{font-style:inherit}.mw-parser-output q{quotes:"""""""'""'"}.mw-parser-output code.cs1-code{color:inherit;background:inherit;border:inherit;padding:inherit}.mw-parser-output .cs1-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Lock-green.svg/9px-Lock-green.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-lock-limited a,.mw-parser-output .cs1-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lock-gray-alt-2.svg/9px-Lock-gray-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Lock-red-alt-2.svg/9px-Lock-red-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration{color:#555}.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration span{border-bottom:1px dotted;cursor:help}.mw-parser-output .cs1-hidden-error{display:none;font-size:100%}.mw-parser-output .cs1-visible-error{font-size:100%}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-format{font-size:95%}.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-right{padding-right:0.2em}
   


2. 
   ^ Boyer, Doug M.; Costeur, Loïc; Lipman, Yaron (2012). "Earliest record of Platychoerops(Primates, Plesiadapidae), a new species from Mouras Quarry, Mont de Berru, France". American Journal of Physical Anthropology. 149 (3): 329–346. doi:10.1002/ajpa.22119. ISSN 0002-9483. PMID 22926965.
   


3. 
   ^ Ni, X.; Meng, J.; Beard, K. C.; Gebo, D. L.; Wang, Y.; Li, C. (2009). "A new tarkadectine primate from the Eocene of Inner Mongolia, China: phylogenetic and biogeographic implications". Proceedings of the Royal Society B: Biological Sciences. 277 (1679): 247–256. doi:10.1098/rspb.2009.0173. ISSN 0962-8452. PMC 2842661. PMID 19386655.
   


4. 
   ^ Paleontologists discover most primitive primate skeleton - PhysOrg.com
   


5. 
   ^ ""Sleep, First Primates, Earthquakes in the Midwest and Profile: Sang-Mook Lee"". NOVA scienceNOW. Season 4. Episode 8. Transcripts – NOVA scienceNOW: July 9, 2008. 9 July 2008. 13:04 minutes in. PBS.
   

External links

• Mikko's Phylogeny Archive

Taxon identifiers	Wikidata: Q426505 Wikispecies: Plesiadapiformes EoL: 6909563 Fossilworks: 40701

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