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Rhinocerotoidea is a superfamily consisting of three family groups of odd-toed ungulates, two of which, the Amynodontidae and Hyracodontidae, are extinct. The only extant family group is the Rhinocerotidae (true rhinoceroses), which survives as five living species. The extinct members of this superfamily are often called "rhinoceroses" alongside members of the family Rhinocerotidae, though they include genera, such as Paraceratherium, which do not closely resemble modern rhinoceroses.

Rhinocerotoidea
Temporal range: 56–0 Ma
Paleocene-Holocene
Diceros bicornis.jpg
A Black rhinoceros (Diceros bicornis) at the Saint Louis Zoo.
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Perissodactyla
Suborder: Ceratomorpha
Superfamily: Rhinocerotoidea

TaxonomyEdit

The family tree below shows the relationship between Rhinocerotoidea and other groups.[1]

Internal classification of Perissodactyla
 Perissodactyla 
 Tapiromorpha 

 Isectolophidae (†)

 Ancylopoda 

 Lophiodontidae (†)

 Chalicotheriidae (†)

 Ceratomorpha 
 Tapiroidea 

 Helaletidae (†)

 Tapiridae

 Rhinocerotoidea 

 Amynodontidae (†)

 Hyracodontidae (†)

 Rhinocerotidae

 Hippomorpha 
 Equoidea 

 Palaeotheriidae (†)

 Equidae

 Brontotherioidea 

 Lambdotheriidae (†)

 Brontotheriidae (†)

ReferencesEdit

  1. ^ Luke T. Holbrook and Joshua Lapergola (2011). "A New Genus of Perissodactyl (Mammalia) from the Bridgerian of Wyoming, with comments on basal Perissodactyl phylogeny". Journal of Vertebrate Paleontology. 31: 895–901.