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- Simplicidentata abstract "Simplicidentata is a group of mammals that includes the rodents (order Rodentia) and their closest extinct relatives. The term has historically been used as an alternative to Rodentia, contrasting the rodents (which have one pair of upper incisors) with their close relatives the lagomorphs (which have two). However, Simplicidentata is now defined as including all members of Glires (the clade formed by lagomorphs and rodents) that share a more recent common ancestor with living rodents than with living lagomorphs. Thus, Simplicidentata is a total group that is more inclusive than Rodentia, a crown group that includes all living rodents, their last common ancestor, and all its descendants. Under this definition, the loss of the second pair of upper incisors is a synapomorphic (shared derived) feature of Simplicidentata. The loss of the second upper premolar (P2) has also been considered as synapomorphic for Simplicidentata, but the primitive simplicidentate Sinomylus does have a P2.This sense of Simplicidentata was introduced by Chuankui Li and colleagues in 1987, who ranked Simplicidentata as a superorder including Rodentia and the extinct Mixodontia, contrasted with the superorder Duplicidentata (including Lagomorpha and the extinct Mimotonida). In their 1997 book Classification of Mammals, Malcolm C. McKenna and Susan K. Bell ranked Simplicidentata as a mirorder within the grandorder Anagalida (also including lagomorphs, macroscelideans, and some additional extinct groups). Within Simplicidentata, they recognized the orders Mixodontia (including only the extinct family Eurymylidae from the Paleocene and Eocene of Asia) and Rodentia. McKenna and Bell's decision to use Simplicidentata was criticized by reviewer Frederick S. Szalay, who preferred to simply place the Mixodontia within Rodentia, which would leave Simplicidentata unnecessary. In The Beginning of the Age of Mammals (2006), Kenneth Rose recognized a mirorder Simplicidentata, including Mixodontia, Rodentia, and the genus Sinomylus (not placed in either order), within the superorder Anagalida.".
- Simplicidentata class Eutheria.
- Simplicidentata class Mammal.
- Simplicidentata kingdom Animal.
- Simplicidentata order Glires.
- Simplicidentata phylum Chordate.
- Simplicidentata thumbnail Oryzomys_palustris_in_vegetation.jpg?width=300.
- Simplicidentata wikiPageExternalLink 4523980.
- Simplicidentata wikiPageID "1754197".
- Simplicidentata wikiPageRevisionID "491722899".
- Simplicidentata classis "Mammalia".
- Simplicidentata hasPhotoCollection Simplicidentata.
- Simplicidentata imageCaption Marsh_rice_rat.
- Simplicidentata infraclassis Eutheria.
- Simplicidentata phylum Chordate.
- Simplicidentata regnum "Animalia".
- Simplicidentata subdivision "*Mixodontia *Rodentia".
- Simplicidentata subdivisionRanks "Orders".
- Simplicidentata superordo Glires.
- Simplicidentata temporalRange "Early Paleocene to Recent".
- Simplicidentata unrankedOrdo "Simplicidentata".
- Simplicidentata unrankedOrdoAuthority "Weber, 1904".
- Simplicidentata subject Category:Mammals.
- Simplicidentata type Animal100015388.
- Simplicidentata type Chordate101466257.
- Simplicidentata type LivingThing100004258.
- Simplicidentata type Mammal101861778.
- Simplicidentata type Mammals.
- Simplicidentata type Object100002684.
- Simplicidentata type Organism100004475.
- Simplicidentata type PhysicalEntity100001930.
- Simplicidentata type Vertebrate101471682.
- Simplicidentata type Whole100003553.
- Simplicidentata type Animal.
- Simplicidentata type Eukaryote.
- Simplicidentata type Mammal.
- Simplicidentata type Species.
- Simplicidentata type Organism.
- Simplicidentata comment "Simplicidentata is a group of mammals that includes the rodents (order Rodentia) and their closest extinct relatives. The term has historically been used as an alternative to Rodentia, contrasting the rodents (which have one pair of upper incisors) with their close relatives the lagomorphs (which have two).".
- Simplicidentata label "Simplicidentata".
- Simplicidentata sameAs m.09gjxrq.
- Simplicidentata sameAs Q7520911.
- Simplicidentata sameAs Q7520911.
- Simplicidentata sameAs Simplicidentata.
- Simplicidentata wasDerivedFrom Simplicidentata?oldid=491722899.
- Simplicidentata depiction Oryzomys_palustris_in_vegetation.jpg.
- Simplicidentata isPrimaryTopicOf Simplicidentata.
