Discover Top Posts Tagged with #chasmosaurus

A small collection of chasmosaurs, here to bring a few more horns into your life

#art #my art #paleontology #paleoart #dinosaur #paleoblr #chasmosaurus #triceratops #ceratopsian

Mother and Son’s Day Out, Dinosaur Park Edition

Result from the Dinosaur Park Formation #paleostream! This formation was on the wheel from the start and I anticipated and dreaded it at the same time. As one of the most famous dinosaur bearing formations this piece offered several challenges.

The major issue is that we have so much megafauna here. The way we eventually brought at least a few of them into the same frame was by having a migrating herd of Centrosaurus coming by a bunch of hadrosaurs licking salt from steep shorelines in this oxbow lake.

To reduce at least a little the amount of fauna to take into account we limited ourselves to the upper portion of the lower member of this formation. This graphic by discord member Vidax came in handy. The Dinosaur Park formation preserves the remnants of a large river system (more than 100 m wide) that once flew into the WIS. I imagine this piece to take place in the mid portion where the river meanders a lot. One would expect lots of sidearms and oxbow lakes to form here.

This piece wasn't as full as last weeks Las Hoyas but I also didn't want to burden the composition to much by cramming several more herds in here or pile up small fauna in the foreground. As you can see in these size charts by Montana, there is a lot to play with.

I still hope that the general vibe comes across though, the thing I maybe miss the most is a flock of ornithomimosaurs, but what can you do :P

#paleoart #sciart #paleostream #palaeoblr #cretaceous #dinosaur #dinosaur park formation #gorgosaurus #corythosaurus #centrosaurus #chasmosaurus #canada

More old art! A 2021 montage of neornithiscians. From left to right (iirc): Nasutoceratops, Pachyrhinosaurus, Dryosaurus, Chasmosaurus, Iguanodon, Parasaurolophus, Pachycephalosaurus, human for scale

#art #paleoart #dino art #dinosaurs #ornithischians #ceratopsians #hadrosaurs #nasutoceratops #pachyrhinosaurus #dryosaurus #chasmosaurus #iguanodon #parasaurolophus #pachycephalosaurus #old art

Spec-Dinovember Day 4: Your Wildest Dream, a wild speculative behavior that left no fossil trace

Nearly every extant horned animal keeps their horns for their entire life. Deer grow and shed their antlers every year, though antlers are developmentally and structurally very different from horns. But, there is a singular outlier, the Pronghorn! Pronghorn have horns with deciduous sheathes, and moreover the bony core of the horn has similar texture to those of regular horns. So maybe, just maybe, some ceratopsians bore similarly deciduous sheathes!

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This isn't a behavior per se, but I think it's a pretty wild speculation so I ran with it! I couldn't find much on how pronghorns grow their sheathes (how do they grow the prong?) except for sources more concerned with hunting. Though one of these informed me that the distal curve grows for ~8 weeks, then the straight proximal portion grows for another ~12 weeks. So, I stacked the outline of the horncore 20 times to get the shape of the full sheathe. Also the roughened area anterior to the orbit and below the horncore lined-up nicely for a justifiable place to grow the 'prong' from. In some centrosaurines this area has correlates for a single large scale, though it seems centrosaurines and chasmosaurines may have differed in facial integument, and some ceratopsids lack this rough area entirely so... plenty of space to play around with weird structures! I don't think this is a likely reconstruction, but there is a *very* slim chance it is possible, and that's pretty fun!