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Acrotholus

Acrotholus
Temporal range: Late Cretaceous, 84–83.5 Ma
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Clade: Dinosauria
Order: Ornithischia
Family: Pachycephalosauridae
Genus: Acrotholus
Evans et al., 2013
Type species
Acrotholus audeti
Evans et al., 2013

Acrotholus is an extinct genus of fully domed pachycephalosaurid dinosaur known from the Late Cretaceous Deadhorse Coulee Member of the Milk River Formation (latest Santonian stage) of southern Alberta, Canada. It contains a single species, Acrotholus audeti.

Below is a cladogram modified from Evans et al., 2013.


Wannanosaurus yansiensis

Colepiocephale lambei

Hanssuesia sternbergi

Stegoceras novomexicanum

Stegoceras validum

Goyocephale lattimorei

Homalocephale calathocercos

Tylocephale gilmorei

Foraminacephale brevis

Acrotholus audeti

Prenocephale prenes

Alaskacephale gangloffi

Pachycephalosaurus wyomingensis

Sphaerotholus buchholtzae


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Wikipedia

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