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Edmontosaurus regalis

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Journal Article

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)

James A. Campbell, Michael J. Ryan, Jason S. Anderson
Published: 10 October 2019
Canadian Journal of Earth Sciences (2020) 57 (5): 617–629.
DOI: https://doi.org/10.1139/cjes-2019-0089
..., although hadrosaurid and ceratopsid dinosaurs represent the largest component by volume. Almost all of these dinosaur remains were collected from a single bonebed (Site 2) at Scabby Butte and have been referred to the hadrosaurid Edmontosaurus regalis Lambe, 1917 and the ceratopsid Pachyrhinosaurus...
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Quantitative diagenetic analyses of Edmontosaurus regalis (Dinosauria: Hadrosauridae) postcranial elements from the Danek Bonebed, Upper Cretaceous Horseshoe Canyon Formation, Edmonton, Alberta, Canada: implications for allometric studies of fossil organisms

Mackenzie Baert, Michael E. Burns, Philip J. Currie
Published: 15 December 2014
Canadian Journal of Earth Sciences (2014) 51 (11): 1007–1016.
DOI: https://doi.org/10.1139/cjes-2014-0060
... shapes; this hypothesis is tested here by quantitatively comparing deformed humeri and femora from the Danek Bonebed (a monodominant Edmontosaurus regalis bonebed from the upper Campanian Horseshoe Canyon Formation in Edmonton, Alberta, Canada) with samples of undeformed humeri and femora from modern...
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Histologic growth dynamic study of Edmontosaurus regalis (Dinosauria: Hadrosauridae) from a bonebed assemblage of the Upper Cretaceous Horseshoe Canyon Formation, Edmonton, Alberta, Canada

Evan Vanderven, Michael E. Burns, Philip J. Currie
Published: 16 October 2014
Canadian Journal of Earth Sciences (2014) 51 (11): 1023–1033.
DOI: https://doi.org/10.1139/cjes-2014-0064
...Evan Vanderven; Michael E. Burns; Philip J. Currie Abstract The Danek Bonebed (Edmonton, Alberta, Canada) is a monodominant Edmontosaurus regalis assemblage of the upper Campanian (Upper Cretaceous) Horseshoe Canyon Formation. Bone histology of humeri and femora are used in this paper to test...
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Midshaft thin section through humeri of <span class="search-highlight">Edmontosaurus</span> <span class="search-highlight">regalis</span> from the Da...

Midshaft thin section through humeri of Edmontosaurus regalis from the Da...

Published: 16 October 2014
Fig. 2. Midshaft thin section through humeri of Edmontosaurus regalis from the Danek Bonebed (Horseshoe Canyon Formation, Edmonton, Alberta, Canada). (A) UALVP 53577, (B) UALVP 52396, (C) UALVP 53578, (D) UALVP 52394, (E) UALVP 52395, (F) UALVP 52368, and (G) UALVP 52370 in transmitted light
Image
Thin section of UALVP 53577, <span class="search-highlight">Edmontosaurus</span> <span class="search-highlight">regalis</span> humerus, displaying zo...

Thin section of UALVP 53577, Edmontosaurus regalis humerus, displaying zo...

Published: 16 October 2014
Fig. 3. Thin section of UALVP 53577, Edmontosaurus regalis humerus, displaying zones of reticular (R) and circumferential (C) fibrolamellar bone (FLB) in transmitted light.
Image
High-magnification thin section of UALVP 53577, <span class="search-highlight">Edmontosaurus</span> <span class="search-highlight">regalis</span> hum...

High-magnification thin section of UALVP 53577, Edmontosaurus regalis hum...

Published: 16 October 2014
Fig. 4. High-magnification thin section of UALVP 53577, Edmontosaurus regalis humerus, displaying highly vascularized circumferential fibrolamellar bone (FLB) in plane-polarized light (left) and cross-polarized light (right).
Image
Thin section of UALVP 53577, <span class="search-highlight">Edmontosaurus</span> <span class="search-highlight">regalis</span> humerus, showing one w...

Thin section of UALVP 53577, Edmontosaurus regalis humerus, showing one w...

Published: 16 October 2014
Fig. 5. Thin section of UALVP 53577, Edmontosaurus regalis humerus, showing one well-defined LAG, indicated by arrowheads, in (A) reflected light and (B) transmitted light.
Image
Thin section of UALVP 52396, <span class="search-highlight">Edmontosaurus</span> <span class="search-highlight">regalis</span> humerus, showing one w...

Thin section of UALVP 52396, Edmontosaurus regalis humerus, showing one w...

Published: 16 October 2014
Fig. 6. Thin section of UALVP 52396, Edmontosaurus regalis humerus, showing one well-designed LAG, indicated by arrowheads, in (A) reflected light and (B) transmitted light.
Image
Thin section of UALVP 53578, <span class="search-highlight">Edmontosaurus</span> <span class="search-highlight">regalis</span> humerus, showing a ser...

Thin section of UALVP 53578, Edmontosaurus regalis humerus, showing a ser...

Published: 16 October 2014
Fig. 7. Thin section of UALVP 53578, Edmontosaurus regalis humerus, showing a series of seven LAGs, indicated by arrowheads, in (A) reflected light and (B) transmitted light.
Image
Thin section of UALVP 52395, <span class="search-highlight">Edmontosaurus</span> <span class="search-highlight">regalis</span> humerus, showing a ser...

Thin section of UALVP 52395, Edmontosaurus regalis humerus, showing a ser...

Published: 16 October 2014
Fig. 8. Thin section of UALVP 52395, Edmontosaurus regalis humerus, showing a series of three LAGs, indicated by arrowheads, in (A) reflected light and (B) transmitted light.
Image
High-magnification thin section of UALVP 52368, <span class="search-highlight">Edmontosaurus</span> <span class="search-highlight">regalis</span> hum...

High-magnification thin section of UALVP 52368, Edmontosaurus regalis hum...

Published: 16 October 2014
Fig. 9. High-magnification thin section of UALVP 52368, Edmontosaurus regalis humerus, displaying extensive remodelling of primary bone via secondary osteons, indicated by arrowheads, in transmitted light (left) and cross-polarized light (right).
Image
Thin section of UALVP 52368, <span class="search-highlight">Edmontosaurus</span> <span class="search-highlight">regalis</span> humerus, with higher m...

Thin section of UALVP 52368, Edmontosaurus regalis humerus, with higher m...

Published: 16 October 2014
Fig. 10. Thin section of UALVP 52368, Edmontosaurus regalis humerus, with higher magnification sections displaying a series of five LAGs, indicated by arrowheads, in (A) plane-polarized light and (B) cross-polarized light.
Image
Midshaft thin sections through femora of <span class="search-highlight">Edmontosaurus</span> <span class="search-highlight">regalis</span> from the D...

Midshaft thin sections through femora of Edmontosaurus regalis from the D...

Published: 16 October 2014
Fig. 11. Midshaft thin sections through femora of Edmontosaurus regalis from the Danek Bonebed (Horseshoe Canyon Formation, Edmonton, Alberta, Canada). (H) UALVP 52758, (I) UALVP 52731, (J) UALVP 52763, (K) UALVP 54774, (L) UALVP 50988, and (M) UALVP 52540 in transmitted light. The periosteal
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Age estimates at time of death for <span class="search-highlight">Edmontosaurus</span> <span class="search-highlight">regalis</span> humeri from the ...

Age estimates at time of death for Edmontosaurus regalis humeri from the ...

Published: 16 October 2014
Fig. 14. Age estimates at time of death for Edmontosaurus regalis humeri from the Danek Bonebed based on (A) age estimates from logarithmic LAG estimates, (B) age estimates from maximum LAG gap, (C) estimates from mean LAG gap, and (D) estimates from minimum LAG gap.
Journal Article

Taphonomy of the Danek Bonebed: a monodominant Edmontosaurus (Hadrosauridae) bonebed from the Horseshoe Canyon Formation, Alberta

Phil R. Bell, Nicolás E. Campione
Published: 18 August 2014
Canadian Journal of Earth Sciences (2014) 51 (11): 992–1006.
DOI: https://doi.org/10.1139/cjes-2014-0062
...Phil R. Bell; Nicolás E. Campione Abstract The Danek Bonebed (Horsethief Member, Horseshoe Canyon Formation, Late Campanian) is dominated by the remains of at least 12 Edmontosaurus regalis . Skeletal remains of a tyrannosaurid and ceratopsid are also known. The predominantly disarticulated...
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Enhancing bonebed mapping with GIS technology using the Danek Bonebed (Upper Cretaceous Horseshoe Canyon Formation, Edmonton, Alberta, Canada) as a case study

Katherine Bramble, Michael E. Burns, Philip J. Currie
Published: 15 December 2014
Canadian Journal of Earth Sciences (2014) 51 (11): 987–991.
DOI: https://doi.org/10.1139/cjes-2014-0056
... dinosaur taxa have been identified at the site: Albertosaurus sarcophagus , Chasmosaurinae indet., Dromaeosauridae indet., Edmontosaurus regalis , Ornithomimidae indet., and Troodontidae indet. This bonebed has been used as a case study for creating a digital, searchable bonebed map using a geographic...
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Stratigraphy of the Danek Bonebed (Upper Cretaceous Horseshoe Canyon Formation, central Alberta) and correlations with strata in the Drumheller and Grande Prairie regions

David A. Eberth, Phil R. Bell
Published: 15 December 2014
Canadian Journal of Earth Sciences (2014) 51 (11): 975–981.
DOI: https://doi.org/10.1139/cjes-2014-0069
.... The Danek’s dinosaurian assemblage is limited taxonomically, but compares well with the Edmontosaurus regalis – Pachyrhinosaurus canadensis fossil assemblage zone in the Drumheller region. We propose that a mega-herbivore faunal assemblage, characterized by Edmontosaurus and Pachyrhinosaurus , extended...
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High-precision U–Pb CA–ID–TIMS dating and chronostratigraphy of the dinosaur-rich Horseshoe Canyon Formation (Upper Cretaceous, Campanian–Maastrichtian), Red Deer River valley, Alberta, Canada

David A. Eberth, Sandra L. Kamo
Published: 09 October 2019
Canadian Journal of Earth Sciences (2020) 57 (10): 1220–1237.
DOI: https://doi.org/10.1139/cjes-2019-0019
... coastal plain at 71.5 Ma, (2) maximum transgression of the Drumheller Marine Tongue at 70.896 ± 0.048 Ma, and (3) transition to a warm-wet alluvial plain at 69.6 Ma. The HCFm’s three mega-herbivore dinosaur assemblage zones track these changes and are calibrated as follows: Edmontosaurus regalis...
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Hadrosaurid ( Edmontosaurus ) bonebeds from the Horseshoe Canyon Formation (Horsethief Member) at Drumheller, Alberta, Canada: geology, preliminary taphonomy, and significance

David C. Evans, David A. Eberth, Michael J. Ryan
Published: 05 August 2015
Canadian Journal of Earth Sciences (2015) 52 (8): 642–654.
DOI: https://doi.org/10.1139/cjes-2014-0184
... to occasionally associated remains of hadrosaurine hadrosaurids, inferred to be Edmontosaurus regalis. The majority of hadrosaurid elements at two of the sites (Bleriot Ferry and Prehistoric Park) are from large, presumably adult-sized individuals, whereas the majority of elements from the Fox Coulee site...
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Dinosaur biostratigraphy of the Edmonton Group (Upper Cretaceous), Alberta, Canada: evidence for climate influence

David A. Eberth, David C. Evans, Donald B. Brinkman, François Therrien, Darren H. Tanke, Loris S. Russell
Published: 04 March 2013
Canadian Journal of Earth Sciences (2013) 50 (7): 701–726.
DOI: https://doi.org/10.1139/cjes-2012-0185
... three dinosaurian assemblage zones in the Horseshoe Canyon Formation (HCFm). From bottom to top the zones comprise unique assemblages of ornithischians and are named as follows: (1) Edmontosaurus regalis – Pachyrhinosaurus canadensis (lower zone); (2) Hypacrosaurus altispinus – Saurolophus osborni...
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