(Wendy’s horn face).
Named By: David C. Evans & Michael J. Ryan - 2015.
Classification: Chordata, Reptilia, Dinosauria, Ornithischia, Marginocephalia, Ceratopsidae, Centrosaurinae.
Species: W. pinhornensis (type).
Size: Roughly estimated to be about 6 meters long.
Known locations: Canada, Alberta - Oldman Formation.
Time period: Campanian of the Cretaceous.
Fossil representation: Partial skull and post cranial skeletal remains from several individuals, including adults and juveniles. The first remains were found together in a bone bed.
very interesting discovery, Wendiceratops has
been identified as one
of the oldest centrosaurine ceratopsian
dinosaurs so far discovered.
At the time of writing only Xenoceratops
to have been older. So far much of what we know about Wendiceratops
has been pieced together by fragmentary and partial remains, but
these do show us interesting developments in the head ornamentation.
Like most ceratopsian genera, Wendiceratops had
osteoderms that were attached to the edges of the neck frill,
which are larger as they approached the top. Also, the further up
they went, the more they curved around and down. The nasal horn
also seems to have been fairly low and blunt, yet still quite large
in its development. Brow horns are expected to have been present
above the eyes, but so far no complete horns have been found, so
their size and shape can so far only be guessed at. In comparison to
other ceratopsian dinosaurs, the ornamentation of Wendiceratops
to be most similar to that of Sinoceratops
from China. The discovery
of Wendiceratops has helped to reinforce the idea
that the ceratopsian
dinosaurs were very quickly evolving ever more changing head
ornamentation, most probably to more easily tell one species from the
By the 2015 naming of Wendiceratops, this genus is now one of five separate ceratopsian dinosaur genera that are known from this part of North America during the Campanian, with the other ceratopsian dinosaur genera including, Albertaceratops, Avaceratops, Judiceratops and Medusaceratops. Ceratopsians would have been some of the principal herbivorous dinosaurs in North America at this time, though hadrosaurs would have also been present, with genera such as Brachylophosaurus, Corythosaurus and Parasaurolophus possibly sharing the same landscapes as Wendiceratops. Predatory threats to all these dinosaurs would have come from the large tyrannosaurs, specifically genera such as Daspletosaurus. Smaller predators such as dromaeosaurs and troodonts would have also been common, but perhaps more of a threat to smaller juveniles.
Wendiceratops was named in honour of Wendy Sloboda, the fossil hunter who first discovered the bonebed that the holotype fossils of this dinosaur were later found in 2010, though most fossils from this location were not recovered until 2013-2014 after the overburden (the rock and soil above the deposit) was removed. The species name pinhornensis simply means that the holotype of the type species of the genus came from the Pinhorn Provincial Grazing Reserve.
- Cranial anatomy of Wendiceratops pinhornensis gen. et sp. nov., a centrosaurine ceratopsid (Dinosauria: Ornithischia) from the Oldman Formation (Campanian), Alberta, Canada, and the evolution of ceratopsid nasal ornamentation. - PLoS ONE 10(7). - David C. Evans & Michael J. Ryan - 2015.