Cedarpelta is an extinct genus of basal ankylosaurid dinosaur from Utah that lived during the Late Cretaceous period (Cenomanian to lower Turonian stage, 98.2 to 93 Ma) in what is now the Mussentuchit Member of the Cedar Mountain Formation.

The type and only species, Cedarpelta bilbeyhallorum, is known from multiple specimens including partial skulls and postcranial material.

The partial remains of an ankylosaur were discovered by Evan Hall and Sue Ann Bilbey at the CEM site near the Price River in Carbon County, Utah while they were visiting an excavation in the surrounding area.

[5][1] The generic name, Cedarpelta, is derived from the Cedar Mountain Formation and the Greek word "pelte" (small shield).

The specific name, bilbeyhallorum, honours Sue Ann Bilbey and Evan Hall, who discovered the remains of Cedarpelta.

In contrast, closure of the opening on the side of the skull behind the orbit, the lateral temporal fenestra, is an advanced, derived (apomorphic) character only known in ankylosaurid ankylosaurians.

The eye socket is surrounded by the lacrimal, a single supraorbital and a large postorbital, excluding the prefrontal and the jugal from the orbital rim.

The lack of a clear pattern in Cedarpelta suggested to Carpenter that the ossification took place in an intermediate layer between the scales and the skull roof itself, which he surmised to have been the periosteum.

The second was that it formed an early ankylosaurid branch, or clade, Shamosaurinae together with Gobisaurus of north-central China and the eponymous Shamosaurus of Mongolia.

Gastonia Ahshislepelta Aletopelta Liaoningosaurus Cedarpelta Chuanqilong Gobisaurus Shamosaurus Crichtonpelta Tsagantegia "Zhejiangosaurus" Pinacosaurus grangeri Pinacosaurus mephistocephalus Saichania Tarchia Zaraapelta Dyoplosaurus Talarurus Nodocephalosaurus Ankylosaurus Anodontosaurus Euoplocephalus Scolosaurus Ziapelta Vickaryous et al. (2004) interpreted Cedarpelta as the basalmost member of the family Nodosauridae, positioned even below the nodosaurids Pawpawsaurus, Silvisaurus, and Sauropelta.

Lesothosaurus diagnosticus Huayangosaurus taibaii Cedarpelta bilbeyhallorum Nodosauridae Gargoyleosaurus parkpinorum Minmi paravertebra Gastonia burgei Gobisaurus domoculus Shamosaurus scutatus Tsagantegia longicranialis Tarchia gigantea Ankylosaurus magniventris Euoplocephalus tutus Saichania chulsanensis Talarurus plicatospineus Pinacosaurus grangeri Pinacosaurus mephistocephalus Tianzhenosaurus youngi