Equidae belongs to the order Perissodactyla, which includes the extant tapirs and rhinoceros, and several extinct families.
12.
"Cambaytherium " is considered to be close to the ancestry of Perissodactyla, the odd-toed ungulates.
13.
Uncertainty still exists regarding the phylogenetic tree for extant laurasiatherians, primarily due to disagreement about the placement of Chiroptera and Perissodactyla.
14.
It is one of the earliest and most primitive of the ungulate mammals, typifying the family Phenacodontidae and the order Perissodactyla.
15.
For a while it was often seen to only contain the order Perissodactyla ( which includes the equines, rhinos and tapirs ).
16.
In particular, the most difficult order to place definitively has been and still is Perissodactyla : Their placement within Zooamata is controversial.
17.
In 1993 and 2005 he wrote the Artiodactyla and Perissodactyla sections for the publication " Mammal Species of the World ".
18.
An alternate phylogeny ( less supported ) holds that the closest relatives to the Ferae are the Perissodactyla and Chiroptera ( bats ), not Cetartiodactyla.
19.
Richard Owen ( 1804 1892 ) quoted Blainville in his study on fossil mammals of the Isle of Wight and introduced the name " Perissodactyla ".
20.
The "'Anchitheriinae "'are an extinct subfamily of the Perissodactyla family Equidae, the same family which includes modern horses, zebras and donkeys.
