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Barbaturex
Temporal range: Eocene
Image 1132e-barbaturex-morrisoni.jpg
An artist's illustration of Barbaturex morrisoni
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Suborder: Iguania
Genus: Barbaturex
Head et al., 2013
Species: B. morrisoni
Binomial name
Barbaturex morrisoni
Head et al., 2013

Barbaturex is an extinct genus of giant herbivorous iguanian lizards from the Eocene of Myanmar. It is represented by a single species, Barbaturex morrisoni, which is known from several partial dentaries (lower jaw bones) and a fused pair of frontals, two bones that form part of the top of the skull. Based on the size of these bones, Barbaturex morrisoni is estimated to have been about 1 metre (3.3 ft) from snout to vent, and possibly up to 6 feet (1.8 m) including the tail. Barbaturex morrisoni was named after The Doors frontman Jim Morrison, a play on his epithet "The Lizard King". The genus's name is a portmanteau of the Latin words Barbatus and rex, meaning "bearded king", in reference to ridges along the mandible and the lizard's large size.

RelationshipsEdit

Barbaturex belongs to a major group of lizards called Iguania, represented today by iguanas, chameleons, and agamids. It belongs to a clade or evolutionary grouping of iguanians called Acrodonta. Like other members of Acrodonta, Barbaturex has an acrodont dentition at the back of its jaws, meaning that the teeth are completely fused with the jaw bone, and a pleurodont dentition at the front of its jaws, meaning that the teeth are fused with the inside surface of the jaw bone. A phylogenetic analysis published with its initial description placed Barbaturex as the sister taxon or closest relative of the group Uromasticinae, which includes the living Uromastyx, a genus of short-skulled herbivorous lizards. Below is a cladogram showing the relationship of Barbaturex to other members of Acrodonta:

Acrodonta


Leiolepis




Barbaturex



Uromasticinae







Chamaeleonidae




Hydrosaurus




Physignathus




Amphibolurinae




Agaminae



Draconinae









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