A magnified view of the crown showing the worn, but present serrations on the carinae. While we don't have any today, land crocs seem to show up independently, and quite frequently, throughout crocodylomorph evolution.

In hindsight, this could have gone very poorly. So uh, always have a friend to help carry heavy objects. If sci-fi multiverse, alternate timeline stuff or whatever is real, then I'm sure there are instances where I did get fatally crushed by the Eubrontes after tumbling down stairs.

A minor correction, apparently this slab of rock is around 78 pounds according to the UPS label. That's what I thought as first, but assumed it was lighter once I managed to carry it up the stairs, but I guess I can carry close to 80 pounds. I only weigh a bit over 100 pounds, so that's surprising.

This 11-12 inch Eubrontes weights about 50-60 pounds which made it quite dangerous to carry up stairs. Eubrontes and other similar morphologies have sometimes been attributed to basal sauropodomorphs as well, but they are generally assumed to be Dilophosaurus-sized theropods in affinity.

A magnified view of the crown, albeit very worn, showing the molar-like morphology of the tooth. This is one of the weirdest archosaur teeth around as most herbivorous species tend to develop leaf-shaped teeth than the mammalian style dentition seen in Iharkutosuchus.

I'm not sure what this means for unserrated tyrannosaur premaxillary teeth from older deposits like the Judith River or Two Medicine Formation. Do they represent an undescribed Nanotyrannidae indet., or at least, a more basal eutyrannosaur/pantyrannosaur of some kind?

www.nature.com/articles/s41...

While unserrated premaxillary teeth were supposedly an ontogenetically variable character, proposed to be found in young Gorgosaurus, recent studies on Nanotyrannus by Zanno and Napoli 2025 have shown this may not be the case. Which may mean they belong to Nanotyrannus lancensis and N. lethaeus.

Comparison with what I believe is a true juvenile young Tyrannosaurus rex (right). While tyrannosaur teeth are very similar to one another, Nanotyrannus teeth are distinguished from T. rex by the hourglass (or figure eight) shape of the cross-section opposed to being oval or round in tyrannosaurins.

A magnified view of the serrations, as well as defined ridges down the crown. Hungarosaurus's close relative, Struthiosaurus, could potentially be found here as well which will likely make distinguishing isolated teeth difficult, if not impossible. They are both struthiosaurin nodosaurids after all.

A magnified view of the bone showing what may or may not be bite marks from a predator. Some of the theropods that may have hunted Dzharacursor include the tyrannosaur, Timurlengia, the carnosaur (or carcharodontosaurian) Ulughbegsaurus, and the large dromaeosaurid, Itemirus.

A magnified view of the distal serrations or denticles. The distal serration density is 17/5mm. The mesial carinae ends half way on this specimen, so likely two thirds the way down if complete. The mesial serration density at the tail end of the carinae is 9/2mm. CBL is 14.2mm, and a CBW of 6.6mm.

The prominent raised ridged down the center of the crown distinguishes pachycephalosaurids from the similarly toothed contemporary basal ornithischian, Thescelosaurus. Size wise, it could lean towards Pachycephalosaurus and Stygimoloch (Dracorex) over the two smaller pachycephalosaurid genera.

A magnified view of the enamel showing pronounced ridges commonly seen in various clades of aquatic predators. This type of enamel seems to differ from those seen in the tooth taxon Deinosuchus rugosus.