Updated on July 8, 2015!
“Cornelius” now has a scientific name – Wendiceratops pinhornensis!
You can read the open access paper here:
Evans DC, Ryan MJ. 2015. Cranial anatomy of Wendiceratops pinhornensis gen. et sp. nov., a cnetrosaurine ceratopsid (Dinosauria: Ornithischia) from the Oldman Formation (Campanian), Alberta, Canada, and the evolution of ceratopsid nasal ornamentation. PLOS ONE 10:e0130007.
Say hello to Cornelius! I got to meet him during a brief visit to the ROM last week, and he seems like a pretty nice guy.
Last week’s #MuseumWeek tweetstorm was an awful lot of fun, especially following the #SciArt event just a few weeks earlier. I thought I’d share a couple of photos and thoughts for each day’s theme – I didn’t manage to post something for each day on Twitter, but I’ll fill in some thoughts and photos here!
Dino Hunt Canada is almost here! Starting this Friday, History Channel Canada will be airing a series of hour-long documentaries devoted to dinosaur expeditions all across Canada – and not just in the famous badlands of Alberta! The production crew visited field localities in Nova Scotia, Saskatchewan, multiple places around Alberta, and British Columbia. It’s going to be a real who’s who and where’s where of Canadian palaeontology.
I’ll be in the second episode featuring work in Dinosaur Provincial Park, which we filmed in 2013. It was a fun if somewhat unusual experience to have such a large film crew with us, and I’m looking forward to seeing the whole shebang!
What was the crew filming in DPP? Tune in to find out!
There’s also a really excellent website to accompany the show. You can learn more about some of the dinosaurs featured in the series (including wonderful new artwork by Danielle Dufault!), see interviews with some of the palaeontologists, and submit ideas for a nickname for a new dinosaur excavated during the show by the Southern Alberta Dinosaur Project. You can even submit questions and maybe have my weirdo face answer them via Skype! All in all, it’s looking really good so far and I’m so happy to see the huge variety of dinosaur research being conducted across Canada by so many talented and hardworking people.
Let’s turn our attention from hadrosaur skin to ankylosaur skin, a topic which has received surprisingly less attention in the published literature than I would have thought. I should qualify that statement, however, by saying that by ‘ankylosaur skin’ I mean ankylosaur skin impressions, because ankylosaur dermal elements are well known and the focus of many a paper – I refer of course to osteoderms, which form within the dermis of the skin and which give ankylosaurs their spiky and armoured appearance.
For a couple of years now I’ve been keeping notes about occurrences of skin impressions in ankylosaurs, which eventually lead to a paper by myself, Mike Burns, Phil Bell, and Phil Currie. We reviewed the morphology of scale patterns in the few specimens that preserve skin, and found that there were some intriguing differences in scalation between different ankylosaurs.
Over the last few posts, I’ve talked about why Euoplocephalus tutus is a valid genus and species, how the Horseshoe Canyon Formation ankylosaurid is really Anodontosaurus lambei, and how the headless and clubless holotype of Scolosaurus cutleri is most likely the same species as the ankylosaurid from the Two Medicine Formation. Here’s a diagram summarizing some of the key points from the paper.
Today I published a revision of the North American ankylosaurid genus Euoplocephalus. I’d like to take some time to go through some of the major points of the paper over the next few days here, but today I will give a brief introduction to the motivation behind this study.
Euoplocephalus is one of those ‘classic’ dinosaurs. Named in 1902 (as Stereocephalus, which was preoccupied by…a beetle! of course), it wasn’t known from very much material. All that Lambe had was a chunk of the snout/forehead region, and an unusual structure called a cervical half ring. Cervical half rings are totally bizarre structures that seem to be unique to ankylosaurids. They’re made of an underlying yoke of fused bone segments, and topped by fused osteoderms like you see on the rest of an ankylosaur’s body.
Canadian Museum of Nature 0210, holotype of Euoplocephalus tutus. On the left, the skull chunk. On the right, the first cervical half ring. Images modified from Arbour and Currie (2013).
Now that I’ve talked about the ROM‘s current offerings of temporary special dinosaur exhibits, I thought I’d turn my attention to the permanent fossil galleries. The ROM has long been one of my favourite museums, and as a student of palaeontology the only museum I have visited more often for my research is the Tyrrell. The last five years have seen some major renovations at the ROM, including the construction of the Michael Lee-Chin Crystal. Continue reading
The ROM has another temporary dinosaur exhibit on display right now, Dinosaur Eggs & Babies: Remarkable Fossils from South Africa. It showcases nests and embryos of the prosauropod dinosaur Massospondylus, which were described by ROM and University of Toronto scientists in 2005 (with a subsequent paper in 2010).
The nests were found in Golden Gate National Park, South Africa. Continue reading
This summer, the Royal Ontario Museum unveiled a brand-new exhibit all about the dinosaurs of Gondwana. When Pangaea rifted apart during the Triassic, it split into two continents – Laurasia, represented by the modern northern continents of North America, Europe, and Asia, and Gondwana, represented by the modern southern continents of South America, Africa, Australia, and Antarctica, plus India, Madagascar, and New Zealand. The dinosaurs and other extinct terrestrial vertebrates of Gondwana differed from their northern neighbours, and we don’t often see them in exhibitions in North America.
Ultimate Dinosaurs: Giants of Gondwana features lots of interesting and sometimes obscure dinosaurs, some really great artwork, and some neat technological things (of which I am sometimes skeptical, but can wholeheartedly endorse here).