Stegoceras! I need to draw pachycephalosaurs more. 

Let's put some color in them cheeks, Stegoceras validum.

A stegoceras with colouring inspired loosely by iguanas since their teeth are similar

It Came From The Wastebasket #10: Struggling With Stegoceras

First described and named in the early 1900s, Stegoceras validum was a dog-sized small pachycephalosaur that lived in Alberta, Canada, during the Late Cretaceous (~77-74 million years ago).

Initially just known from its skull domes, it was one of the first pachycephalosaurs to be discovered and was very poorly understood until more complete remains were found in the 1920s. Then it spent a couple of decades being mixed up with Troodon due to similarities in tooth shape, until the discovery of Pachycephalosaurus led to pachycephalosaurs finally being recognized as a distinct group of ornithischian dinosaurs in the 1940s.

For much of the 20th century Stegoceras was treated as a wastebasket taxon for any small-to-mid-sized North American (and one Asian) pachycephalosaur, and multiple different species were named based on what were often rather dubious fragmentary fossils. But towards the start of the 21st century this mess did start getting cleaned up, merging some dubious species into the original Stegoceras validum, and moving others to separate genera like Sphaerotholus, Colepiocephale, Hanssuesia, and Sinocephale.

By the early 2000s just the Canadian Stegoceras validum remained – but then in 2011 the new species Stegoceras novomexicanum was named based on specimens from New Mexico, USA. The validity of this second species has been debated, since the fossils are juveniles and might instead belong to Stegoceras validum or another genus like Sphaerotholus, but if it is some sort of Stegoceras then it significantly re-extends the known geographic range of this little pachycephalosaur.

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Trick or treat!

Stegoceras!

airport sketches. i went to DC to see family this week and i got to see the dinosaurs at the Smithsonian. these are some of them that i saw. i’m more proud of some of them than others, but eh, i’m tired

the doodles on the right are from my sister lmao

Stegoceras by Carvente

Day 6: Hanssuesia

A Pachycephalosaurid is synonymously known as Stegoceras (as of 2023 publication by three authors) of Judith River Formation.

Life Before Man (The Emergence of Man) Illustrated by Burton Silverman.

(via)

Graves for hottest_wheels over on art fight.

Pachycephalosaur women (not to be confused with Pakipeople or Pachypeople) and ankylosaur men, Midjourney v4.

My Stegoceras model 

Final for my Stegoceras validum piece.

He's small but scrappy!

A genus of pachycephalosaurid (dome-headed) dinosaur that lived in what is now North America during the Late Cretaceous period, about 77.5 to 74 million years ago (mya). The first specimens from Alberta, Canada, were described in 1902, and the type species Stegoceras validum was based on these remains. The generic name means "horn roof", and the specific name means "strong". Several other species have been placed in the genus over the years, but these have since been moved to other genera or deemed junior synonyms. Currently only S. validum and S. novomexicanum, named in 2011 from fossils found in New Mexico, remain. The validity of the latter species has also been debated. Stegoceras was a small, bipedal dinosaur about 2 to 2.5 metres (6.6 to 8.2 ft) long, and weighed around 10 to 40 kilograms (22 to 88 lb). The skull was roughly triangular with a short snout, and had a thick, broad, and relatively smooth dome on the top. The back of the skull had a thick "shelf" over the occiput, and it had a thick ridge over the eyes. Much of the skull was ornamented by tubercles (or round "outgrowths") and nodes (or "knobs"), many in rows, and the largest formed small horns on the shelf. The teeth were small and serrated. The skull is thought to have been flat in juvenile animals and to have grown into a dome with age. It had a rigid vertebral column, and a stiffened tail. The pelvic region was broad, perhaps due to an extended gut. Originally known only from skull domes, Stegoceras was one of the first known pachycephalosaurs, and the incompleteness of these initial remains led to many theories about the affinities of this group. A complete Stegoceras skull with associated parts of the skeleton was described in 1924, which shed more light on these animals. Pachycephalosaurs are today grouped with the horned ceratopsians in the group Marginocephalia. Stegoceras itself has been considered basal (or "primitive") compared to other pachycephalosaurs. Stegoceras was most likely herbivorous, and it probably had a good sense of smell. The function of the dome has been debated, and competing theories include use in intra-specific combat (head or flank-butting), sexual display, or species recognition. S. validum is known from the Dinosaur Park Formation and the Oldman Formation, whereas S. novomexicanum is from the Fruitland and Kirtland Formation.

Herbivore

Art (c) reneg661

Results from the (partly) pachycephalosaur #paleostream

Avisaurus (with Platytholus), Saurornitholestes (with Stegoceras skull), Tylocephale, Texacephale (Deinosuchus in the background)

artwork by @thewoodparable