Plesiadapiformes

Taxobox
name = Plesiadapiformes
fossil_range = latest Cretaceous - late Eocene

---

image_caption = "Plesiadapis"
regnum = Animalia
phylum = Chordata
classis = Mammalia
infraclassis = Eutheria
superordo = Euarchontoglires
ordo = Plesiadapiformes
ordo_authority = Simons & Tattersall, 1972
subdivision_ranks = Families
subdivision =
*Micromomyidae
*Paromomyidae
*Picromomyidae
*Palaechthonidae
*Picrodontidae
*Microsyopidae
*Chronolestidae
*Plesiadapidae
*Carpolestidae

Plesiadapiformes is an extinct order of mammals. It is either closely related to the primates or a pre-cursor to them. Many are too derived to be ancestral to primates. The earliest ones have teeth that are strongly indicative that they share a common ancestor with primates. "Purgatorius" is the earliest fossil that could have given rise to both primates and Plesiadapiformes.

Plesiadapiforme first showed up in the Cretaceous period, though many were extinct by the beginning of the Eocene.

Clade | style=font-size:75%;line-height:75%
label1=Euarchontoglires
1=Clade
label1=Glires
1=Clade
1=Rodentia (rodents)
2=Lagomorpha (rabbits, hares, pikas)
label2=Euarchonta
2=Clade
1=Scandentia (treeshrews)
2=Clade
1=Dermoptera (colugos)
2=Clade
1=†Plesiadapiformes
2=Primates

One possible classification table of plesiadapiform families is listed below.

*ORDER PLESIADAPIFORMES
** Family Micromomyidae
** Superfamily Paramomyoidea
*** Family Paromomyidae
*** Family Picromomyidae
*** Family Palaechthonidae
*** Family Picrodontidae
*** Family Microsyopidae
** Superfamily Plesiadapoidea
*** Family Chronolestidae
*** Family Plesiadapidae
** Superfamily Carpolestoidea
*** Family Carpolestidae

External links

* [http://www.fmnh.helsinki.fi/users/haaramo/Metazoa/Deuterostoma/Chordata/Synapsida/Eutheria/Plesiadapiformes/plesiadapiformes.htm Mikko's Phylogeny Archive]