Edmontosaurus regalis is a species of comb-crested hadrosaurid dinosaur. Fossils of E. regalis have been found in rocks of western North America that date from the late Campanian age of the Cretaceous Period 73 million years ago, but it may have possibly lived into the early Maastrichtian.[1]
E. regalis was one of the largest hadrosaurids, measuring up to 12 metres (39 ft) long and weighing around 4.0 metric tons (4.4 short tons). It is classified as a genus of saurolophine (or hadrosaurine) hadrosaurid, a member of the group of hadrosaurids that lacked large, hollow crests, and instead had smaller, solid crests or fleshy combs.[2] The distribution of E. regalis fossils suggests that it preferred coasts and coastal plains. It was a herbivore that could move on both two legs and four. Because it is known from several bone beds, E. regalis is thought to have lived in large groups. The wealth of fossils has allowed researchers to study its paleobiology in detail, including its brain, how it may have fed, and its injuries and pathologies.
^Campbell, J. A.; Ryan, M. J.; Anderson, J. S. (2020). "A taphonomic analysis of a multitaxic bonebed from the St. Mary River Formation (uppermost Campanian to lowermost Maastrichtian) of Alberta, dominated by cf. Edmontosaurus regalis (Ornithischia: Hadrosauridae), with significant remains of Pachyrhinosaurus canadensis (Ornithischia: Ceratopsidae)". Canadian Journal of Earth Sciences. 57 (5): 617–629. Bibcode:2020CaJES..57..617C. doi:10.1139/cjes-2019-0089. S2CID 210287585.
^Cite error: The named reference crest was invoked but never defined (see the help page).
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Edmontosaurusregalis is a species of comb-crested hadrosaurid dinosaur. Fossils of E. regalis have been found in rocks of western North America that date...
dinosaur. It contains two known species: Edmontosaurusregalis and Edmontosaurus annectens. Fossils of E. regalis have been found in rocks of western North...
Edmontosaurus annectens (meaning "connected lizard from Edmonton"), often colloquially and historically known as the Anatosaurus (meaning "duck lizard")...
characterized by the association of Pachyrhinosaurus canadensis and Edmontosaurusregalis. However, the association between S. osborni and Anchiceratops was...
(2024) describe fossil material of a probable immature specimen of Edmontosaurusregalis from the Horseshoe Canyon Formation, and interpret its similarities...
Jacob Wortman found skin impressions on the first known specimen of Edmontosaurus annectens, which were largely destroyed during the specimen's excavation...
"The largest clade containing Brachylophosaurus canadensis but not Edmontosaurusregalis, Hadrosaurus foulkii, Kritosaurus navajovius and Saurolophus osborni"...
more informed analysis and review in 1961, pulling on data from Edmontosaurusregalis, E. annectens, and Gryposaurus notabilis (then considered a synonym...
not a particularly close relative of classic "hadrosaurines" such as Edmontosaurus and Saurolophus. As a result of this, the name Hadrosaurinae was restricted...
a Styracosaurus bone bed in Alberta, an Edmontosaurus annectens bone bed in Wyoming, an Edmontosaurusregalis bone bed in Alberta, a Gryposaurus bone...
than either lambeosaurines or other traditional "hadrosaurines", like Edmontosaurus and Saurolophus. As a result of this, the name Hadrosaurinae was dropped...
(2024-04-16). "Craniomandibular anatomy of a juvenile specimen of Edmontosaurusregalis Lambe, 1917 clarifies issues in ontogeny and biogeography". Journal...
(2017-04-06). "Supplementary cranial description of the types of Edmontosaurusregalis (Ornithischia: Hadrosauridae), with comments on the phylogenetics...
armored nodosaur Edmontonia longiceps, the duckbilled hadrosaur Edmontosaurusregalis, the theropods Saurornitholestes and Troodon, possibly the ornithopod...
and Saurolophus. Although they lack a shorter frontal, the genera Edmontosaurus and Shantungosaurus share with saurolophins an elongated dentary. Patches...
at this point, and only the species known today as Edmontosaurus annectens, Edmontosaurusregalis, and Gryposaurus notabilis (at that time thought to...
tomography and fluoroscope screening. Several other hadrosaurids, including Edmontosaurus, Gilmoreosaurus, and Bactrosaurus, also tested positive. Although more...
(2017-04-06). "Supplementary cranial description of the types of Edmontosaurusregalis (Ornithischia: Hadrosauridae), with comments on the phylogenetics...
an estimated length of around 10 m (33 ft) long. †Edmontosaurus †Edmontosaurusregalis †Edmontosaurus annectens 73–66 Ma, Campanian to Maastrichtian Hell...
Hemisphere during the Late Cretaceous period. It currently contains Edmontosaurus (from Canada and the United States), Shantungosaurus and Laiyangosaurus...
genus of hadrosaur known only from dental fossils. Edmontosaurus 73.0–76.5 mya Canada Edmontosaurus, a saurolophine hadrosaur, included some of the largest...
armored nodosaur Edmontonia longiceps, the duckbilled hadrosaur Edmontosaurusregalis, the theropods Hagryphus, Saurornitholestes and Troodon, and the...
(2023) study ossified tendons of specimens of Pinacosaurus grangeri, Edmontosaurusregalis/"Ugrunaaluk kuukpikensis" and Homalocephale calathocercos, reporting...
gagslarsoni was named in 2011. Unlike nearly all hadrosaurids except Edmontosaurus, Acristavus lacked ornamentation on its skull. The discovery of Acristavus...
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