Pachyrhinosaurus

thick-nosed lizard

• pachys · Greek · thick
• rhis (rhinos) · Greek · nose
• sauros · Greek · lizard

The name comes from Greek words meaning "thick", "nose" and "lizard". It refers to the large, thick bony boss on the snout, which took the place of the nasal horn seen in many other ceratopsids. The type species, P. lakustai, was named for the Lake Pachyrhinosaurus bonebed area near Grande Prairie, Alberta...

Named by

Sternberg

Year named

1950

Period

Late Cretaceous

Stages

Campanian – Maastrichtian

Found in

Alberta, Canada (Horseshoe Canyon Formation, Wapiti Formation) and the North Slope of Alaska, USA (Prince Creek Formation)

A centrosaurine ceratopsian. Type species P. canadensis (Sternberg, 1950); other species include P. lakustai and P. perotorum.