Is this a fossil?

A ceratopsian scapula sticking out of the hill. Though most of the scapula is covered, you can make out the outline where the fossil has broken and some broken fragments on the far left.

This is in the Horsetheif member of the Horseshoe Canyon Formation (71.5-71 mya). Three Ceratopsians occupy this temporal and geographic range: Anchiceratops ornatus, Arrhinoceratops brachyops, and Pachyrhinosaurus canadensis. The stratigraphic range of Ar. brachyopsis inferred to encompass the entire member, though skeletal material has yet to be recovered in the lower half of the member (Ebreth et al. 2013), which is where scapula is located. Therefore the specimen likely belongs to either An. ornatus or P. canadensis. 

Tibia: Edmontosaurus regalis is the only known hadrosaur from the Horsetheif Member

Dromaeosaur tooth: both velociraptorinae and dromaeosaurinae are known in the formation, only the former has described at the species level (Atrociraptor marshalli). This tooth however appears to be a dromaeosaurine tooth.

Tyrannosaur tooth: Albertosaurus sarcophagus is the only known tyrannosaur from the formation. This is one of the first maxillary teeth as the anterior serrations curve strongly to the lateral-posterior. The photo doesn’t show it though as the posterior serrations are on the underside.

Now I’m not 100% on this one so if anyone has another opinion on what this is I’d love to hear it. That being said my best guess is it’s MT II from the left pes of a hadrosaur. This was collected low in the Horsetheif Member (~71.5-71 Ma) from the Horseshoe Canyon Formation (~72.5-66.9 Ma), several meters (and probably the same strata) from the ankylosaur tooth I just posted. The only known hadrosaur from the member is Edmontosaurus regalis, though I have found at least one lambeosaurian tooth in the same member. 

(Top) Field collection. This is the undisturbed specimen before collection. Photo was taken while I was using my ghetto GPS to get the UTM coordinates. In sequence: anterior, medial, posterior, lateral

Just found this one on Monday. This is an ankylosaurid tooth from very low in the Horsetheif Member (~71.5-71 Ma) of the Horseshoe Canyon Formation (~72.5-66.9 MA). The only ankylosaurid known from the Member is Anodontosaurus lambei, which was synonymised with Euphocephalus in 1971 and resurrected as a valid taxa in 2010. 

So I got accepted into the Paleontology field school at uni and I get to work with DR. PHILL CURRIE!!!!!!!!!!! We’re going to be working in the Danek Bonebed (Edmontosaurus) here in Edmonton for three whole weeks. I’m so stoked!! *Fan girls inside*

Femur of what I think is a Ceratopsian (there was a frill fragment sticking out of the ground not far from this). The distal end was eroded out of the hill but you can see it coming out on the right.

I’ve already posted these before but they were lumped in with the rest of my tyrannosaur teeth. I felt they deserved their own shots. Top: Tyrannosaur tooth from the Horsetheif Member of the Horseshoe Canyon Formation. The only Tyrannosaur described from the formation is Albertosaurus, though tyrannosaur teeth are not diagnostic at the genus level. Middle: The anterior serrations of the tooth from the above photo. Bottom: Tyrannosaur tooth from the Dinosaur Park Formation. Two tyrannosaurs are known from this formation: Daspletosaurus and Gorgosaurus.  

Two views of a lambeosaurian (hadrosaur) tooth. They are diagnostic from saurolophinae by the presence of denticles running down the sides of the teeth. Currently no saurolophinae hadrosaurs have been described from the member, though Hypacrosaurus has been described in younger members of the formation. From the Horsetheif Member of the Horseshoe Canyon Formation (Campanian). This is also from the same location as the nodosaur tooth I posted a few days ago.

Keeping on the ornithomimid trend, here is a metatarsal IV from the left pes. Top to bottom: anterior, posterior, left lateral, and right lateral. Quite a lot of prep went into this guy, had to do a lot of gluing. From the Dinosaur Park Formation (Campanian, Cretaceous).

Two teeth collected from the same location in the Horsetheif member of the Horseshoe Canyon Formation of Alberta (Campanian). Left: a champsosaur tooth Right: a dromaeosaurid (velociraptorinae, Atrociraptor?) tooth. I was lucky enough to find both halves of this tooth within 30cm of eachother.   

Not too sure on the identification here but it’s likely ornithischian. Dinosaur Park Formation, Campanian, Cretaceous. 

Four aspects (Anterior, right lateral, ventral, and dorsal) of a mid-caudal hadrosaur vertebrae from the Dinosaur Park Formation (Campanian) roughly 75-76 mya. 

Right: Ornithomimid phalanx, from the Dinosaur Park Formation (Campanian). This specimen really shows off what is mean when we say that theropod bones were hollow.

Left: Ornithomimid manus ungual (claw): from the Horsetheif member of the Horseshoe Canyon Formation (Campanian). Sadly it’s not the entire claw but its my first claw.

my series of my “good” tyrannosaur teeth

First three teeth: Albertosaurus from the Horsetheif Member of the Horseshoe Canyon Formation (Campanian)

Teeth 4 and 5: Gorgosaurus from the Dinosaur Park Formation (Campanian)

Tooth 6: Daspletosaurus from the Dinosaur Park Formation (Campanian)

A dromaeosaurid caudal vertebrae found in the Dinosaur Park Formation (Campanian) I’m worried it might actually be a champsosaur caudal vertebrae but I’m pretty confident that it’s dromaeosaur. 

Top: left lateral view. Bottom: anterior view.

(Left) Saurornitholestes tooth found at the base of the Scollard Formation (Maastrichtian). This was my first dinosaur tooth that I ever found

(Right) Saurornitholestes tooth found in the Horsetheif member of the Horseshoe Canyon Formation (Campanian)