Horseshoe Canyon Formation

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E. longiceps

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Upper Horsethief

| A skull with mandible, dorsal vertebrae, dorsal vertebrae, sacral vertebrae, caudal vertebrae, cervical ribs, dorsal ribs, humerus, radius, ulna, radius, ilia, ischia, both pubes (?), femur, tibia, fibula and osteoderms.

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A panoplosaurin nodosaurid also known from the lower Dinosaur Park Formation and closely related Denversaurus.{{cite journal | last1 = Russell | first1 = L.S. | year = 1940 | title = Edmontonia rugosidens (Gilmore), an armored dinosaur from the Belly River Series of Alberta | journal = University of Toronto Studies, Geology Series | volume = 43 | pages = 3–28 }}

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Euoplocephalus

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E. tutus

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Walter Coombs (1971) synonymised Anodontosaurus lambei with E. tutus. However, recent studies suggest that Anodontosaurus is distinct enough from Euoplocephalus to be placed in its own genus and species.{{Cite journal | last1 = Penkalski | first1 = P. | doi = 10.4202/app.2012.0125 | title = A new ankylosaurid from the late Cretaceous Two Medicine Formation of Montana, USA | journal = Acta Palaeontologica Polonica | year = 2013 | doi-access = free }}{{Cite journal | last1 = Penkalski | first1 = P. | last2 = Blows | first2 = W. T. | doi = 10.1139/cjes-2012-0098 | title = Scolosaurus cutleri (Ornithischia: Ankylosauria) from the Upper Cretaceous Dinosaur Park Formation of Alberta, Canada | journal = Canadian Journal of Earth Sciences | pages = 171–182 | year = 2013 | volume=50| issue = 2 | bibcode = 2013CaJES..50..171P }} Furthermore, all Horseshoe Canyon Formation ankylosaurine specimens were suggested to be reassigned to Anodontosaurus.{{cite journal |last=Arbour |first=Victoria |year=2010 |title=A Cretaceous armoury: Multiple ankylosaurid taxa in the Late Cretaceous of Alberta, Canada and Montana, USA |journal=Journal of Vertebrate Paleontology |volume=30 |issue=Supplement 2 |pages=55A |doi=10.1080/02724634.2010.10411819}}

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E. regalis

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Horsethief; likely present in Drumheller.

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H. altispinus

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Morrin and Tolman.

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"[Five to ten] articulated skulls, some associated with postcrania, isolated skull elements, isolated postcranial elements, many individuals, embryo to adult.""Table 20.1," in Weishampel, et al. (2004). Page 441.

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S. osborni

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Upper Morrin and Tolman.

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"Complete skull and skeleton, [two] complete skulls."

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A. brachyops

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Horsethief

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A nearly complete skull.

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A chasmosaurine ceratopsid restricted to the holotype specimen as Farke (2007) assigned the referred specimen ROM 1439 to Torosaurus.Farke, A.A., 2007, "Cranial osteology and phylogenetic relationships of the chasmosaurine ceratopsid Torosaurus latus", pp 235-257 in: K. Carpenter (ed.), Horns and Beaks: Ceratopsian and Ornithopod Dinosaurs, Bloomington, Indiana University Press

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E. xerinsularis

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Carbon

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Premaxillae, maxillae, rostral, supraorbital horncore with lacrimal, prefrontal, frontal, postorbital, jugal, epijugal, quadratojugal, quadrate, partial parietal, squamosal frill, braincase, syncervical, cervical vertebrae, dorsal vertebrae, ribs and fragments of ossified ligaments.

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A large chasmosaurine ceratopsid that may represent a senior synonym of Ojoceratops from the Ojo Alamo Formation.{{Cite journal | last1 = Wick | first1 = S. L. | last2 = Lehman | first2 = T. M. | doi = 10.1007/s00114-013-1063-0 | title = A new ceratopsian dinosaur from the Javelina Formation (Maastrichtian) of West Texas and implications for chasmosaurine phylogeny | journal = Naturwissenschaften | volume = 100| issue = 7| pages =667–82| year = 2013 | pmid = 23728202|bibcode = 2013NW....100..667W | s2cid = 16048008 }}

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P. canadensis

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Drumheller and Horsethief

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[Two] partial skulls.

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A centrosaurine ceratopsid also known from the St. Mary River Formation.

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S. edmontonense

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Tolman

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A frontoparietal.

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A pachycephalosaurine pachycephalosaurid also known from the Hell Creek and Kirtland Formation.

|File:Sphaerotholus.jpg|frameless]]

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P. warreni

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Tolman

| A partially articulated skeleton and partial skull.

| A thescelosaurid neornithischian.

| File:Parksosaurus_warreni,_Near_Drumheller,_Alberta,_Canada,_Late_Cretaceous_-_Royal_Ontario_Museum_-_DSC00035.JPG|frameless]]

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A. curriei

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Horsethief

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[Two] frontals.

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A troodontid theropod that adds to the diversity of North American troodontids.

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A. borealis

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Upper Tolman

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Ulna, tibiae, metatarsals, manual ungual, pedal phalanxes and unidentified pedal phalanges.

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An mononykin alvarezsaurid specialized for digging insect nests.

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A. pennatus

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Horsethief

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A palatine, mandibles, ceratobranchials, axis, cervical vertebrae, dorsal vertebrae, pectoral girdles, sternal plate, forelimb, ilium, femur, tibia and fibula.

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A caenagnathid oviraptorosaur recovered as sister taxon to Elmisaurus .

|frameless

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A. marshalli

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Lower Horsethief

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Premaxillae, maxilla, dentaries, teeth and numerous bone fragments.

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A dromaeosaurid; teeth indicate it may have been present across all members.

|frameless

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D. brevitertius

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Several specimens. type specimen

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An ornithomimid

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Ornithomimus

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O. currelli

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Junior synonym of O. edmontonicus

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Drumheller, Horsethief, Morrin, and Tolman

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Several specimens, type specimen

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An ornithomimid

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S. altus

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Drumheller, Horsethief, and Morrin

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An ornithomimid

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Albertosaurus

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A. arctunguis

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Junior synonym of A. sarcophagus

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File:Albertosaurus skull cast.jpg]]

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Horsethief, Morrin, and Tolman; likely present in Drumheller and Carbon.

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Several skeletons and partial skeletons, type specimen

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A tyrannosaurid which was the most common large carnivore in the area.{{cite journal |last1=Coulton |first1=Richard L. |title=The Theropod Dinosaurs of the Edmonton Formation, Alberta, Canada |journal=Rocks & Minerals |date=1977 |volume=52 |issue=4 |pages=176–181 |doi=10.1080/00357529.1977.11761949 |bibcode=1977RoMin..52..176C |url=https://www.tandfonline.com/doi/abs/10.1080/00357529.1977.11761949?journalCode=vram20 |access-date=21 March 2021|url-access=subscription }}{{cite journal |last1=Tanke |first1=Darren H. |last2=Currie |first2=Phillip J. |title=A history of Albertosaurus discoveries in Alberta, Canada |journal=Canadian Journal of Earth Sciences |date=7 September 2010 |volume=47 |issue=9 |pages=1197–1211 |doi=10.1139/e10-057 |bibcode=2010CaJES..47.1197T |url=https://cdnsciencepub.com/doi/abs/10.1139/e10-057 |access-date=21 March 2021|url-access=subscription }}

Daspletosaurus

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D. sp.

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Suggested from the skeleton of an immature tyrannosaurid (CMN 11315), thorough analysis of this specimen supports a referral to A. sarcophagus.{{cite journal |last1=Mallon |first1=J.C. |last2=Bura |first2=J.R. |last3=Currie |first3=P.J. |title=A Problematic Tyrannosaurid (Dinosauria: Theropoda) Skeleton and Its Implications for Tyrannosaurid Diversity in the Horseshoe Canyon Formation (Upper Cretaceous) of Alberta |year=2019 |journal=The Anatomical Record |volume=303 |issue=4 |pages=673–690 |doi=10.1002/ar.24199|doi-access=free |pmid=31254458 |pmc=7079176 }} An isolated maxilla and teeth from an Edmontosaurus bonebed were also mistakenly referred to Daspletosaurus, however all the tyrannosaurid material in the bonebed was confirmed to belong to A. sarcophagus.{{cite journal|last1=Torices |first1=A. |last2=Reichel |first2=M. |last3=Currie |first3=P.J. |title=Multivariate analysis of isolated tyrannosaurid teeth from the Danek Bonebed, Horseshoe Canyon Formation, Alberta, Canada. |year=2014 |journal=Canadian Journal of Earth Sciences |volume=51 |issue=11 |pages=1045–1051 |doi=10.1139/cjes-2014-0072|bibcode=2014CaJES..51.1045T }}

DidelphodonR. C. Fox and B. G. Naylor. 1986. A new species of Didelphodon Marsh (Marsupialia) from the Upper Cretaceous of Alberta, Canada: paleobiology and phylogeny. Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen 172(3):357-380

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D. coyi

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a stagodontid metatherian

|File:Didelphodon NT small.jpg|frameless]]

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S. mccabei

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"a skull, partial lower jaws, and partial postcranial skeleton"

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An alligatoroid

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C. albertensis

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"partial skeleton with partial skull"

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a choristodere

|File:Champsosaurus BW.jpg|frameless]]

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L. ultimus

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"a partial skeleton"

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a plesiosaur of uncertain classification

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B. morrinensis

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"nearly complete shell"

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a nanhsiungchelyid turtle

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|B. labyrinthicus

|Edmonton.

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|Partial skull.

|A sturgeon.

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H. armaserratus

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An ellimmichthyiform

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