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Localities producing perinatal tyrannosaur bones. Map (A) of Alberta and Montana, showing the Egg Gulch locality and the location of the Red Deer River Valley region near Morrin, Alberta. Satellite image (B) of Red Deer River Valley near Morrin, Alberta, showing locality of TMP 1996.005.0011 and the area mapped by a crewless aerial vehicle shown in Figs. 1C and 1D. Photogrammetric model (C, D) of eastern Morrin Bridge area created from 1080 photographs in natural colour (C) and false colour (D), showing the Horsethief and Morrin Members, as well as modern pediment. Boxes indicate regions expanded in Figs. 1E and 1F, and the yellow dot indicates the FTS-2 locality. Close-up of photogrammetric model (E, F), showing the FTS-2 locality and the area where UALVP 59599 was collected in natural colour (E) and false colour (F). CZ, coal zone. Map data in Figs. 1A and 1B from Google, used under fair use terms. [Colour online.]

Localities producing perinatal tyrannosaur bones. Map (A) of Alberta and Mo... Available to Purchase

Published: 25 January 2021
Fig. 1. Localities producing perinatal tyrannosaur bones. Map (A) of Alberta and Montana, showing the Egg Gulch locality and the location of the Red Deer River Valley region near Morrin, Alberta. Satellite image (B) of Red Deer River Valley near Morrin, Alberta, showing locality of TMP
Journal Article

A revised stratigraphy and depositional history for the Horseshoe Canyon Formation (Upper Cretaceous), southern Alberta plains Available to Purchase

David A. Eberth, Dennis R. Braman
Published: 20 August 2012
Canadian Journal of Earth Sciences (2012) 49 (9): 1053–1086.
DOI: https://doi.org/10.1139/e2012-035
...David A. Eberth; Dennis R. Braman Abstract The Upper Cretaceous paralic to nonmarine Horseshoe Canyon Formation (HCFm) of southern Alberta is divided into seven mappable members: Strathmore, Drumheller, Horsethief, Morrin, Tolman, Carbon, and Whitemud (bottom to top). This subdivision, based...
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View PDF for article title, A revised stratigraphy and depositional history for the Horseshoe Canyon Formation (Upper Cretaceous), southern <span class="search-highlight">Alberta</span> plains
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Dinosaur biostratigraphy of the Edmonton Group (Upper Cretaceous), Alberta, Canada: evidence for climate influence Available to Purchase

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
...David A. Eberth; David C. Evans; Donald B. Brinkman; François Therrien; Darren H. Tanke; Loris S. Russell Abstract A high-resolution biostratigraphic analysis of 287 dinosaurian macrofossils and 138 bonebeds in the Edmonton Group (Upper Cretaceous) of southern Alberta provides evidence for at least...
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View PDF for article title, Dinosaur biostratigraphy of the Edmonton Group (Upper Cretaceous), <span class="search-highlight">Alberta</span>, Canada: evidence for climate influence
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Summary of dated and age-interpolated features and intervals in the Bearpaw... Available to Purchase

Published: 09 October 2019
Table 3. Summary of dated and age-interpolated features and intervals in the Bearpaw, Horseshoe Canyon, Battle, and Scollard formations in the Red Deer River valley near Drumheller, Alberta, Canada. Note: ABB, Albertosaurus Bonebed bentonite; BB, Battle bentonite; BpB, Bearpaw Formation
Journal Article

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 Available to Purchase

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
...Table 3. Summary of dated and age-interpolated features and intervals in the Bearpaw, Horseshoe Canyon, Battle, and Scollard formations in the Red Deer River valley near Drumheller, Alberta, Canada. Note: ABB, Albertosaurus Bonebed bentonite; BB, Battle bentonite; BpB, Bearpaw Formation...
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View PDF for article title, 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, <span class="search-highlight">Alberta</span>, Canada
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Journal Article

Origins of dinosaur bonebeds in the Cretaceous of Alberta, Canada Available to Purchase

David A. Eberth
Published: 05 August 2015
Canadian Journal of Earth Sciences (2015) 52 (8): 655–681.
DOI: https://doi.org/10.1139/cjes-2014-0200
..., Morrin, Tolman, Carbon, and Whitemud members. In their interpretation, the Morrin and Tolman members reflect a northern expansion of the climatically drier middle to upper St. Mary River Formation into south-central Alberta. Similar to the Dinosaur Park Formation, bonebeds are common in the Horseshoe...
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View PDF for article title, Origins of dinosaur bonebeds in the Cretaceous of <span class="search-highlight">Alberta</span>, Canada
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Fig. 3.

Chronostratigraphic correlation chart for the Horseshoe Canyon Formation in... Available to Purchase

Published: 15 December 2014
, Drumheller Member; H, Horsethief Member; Litho-/Seq Strat, Lithostratigraphy and Sequence-Stratigraphy; M, Morrin Member; S, Strathmore Member; T, Tolman Member; W, Whitemud Member; UALVP, University of Alberta Laboratory of Vertebrate Paleontology.
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Study area in Alberta. (A) Map of Alberta showing extent of Horseshoe Canyon Formation (yellow shading), Bearpaw Formation (green shading), and Battle Formation (red line). (B) Locations (white dots) of all bentonites dated here. (C) Locations of Horseshoe Canyon Formation bentonites dated here. Base map from Arc GIS 10.7.1. (D) Typical example of weathered and freshly exposed bentonite (overflow parking bentonite, OPB) near the Royal Tyrrell Museum of Palaeontology, Drumheller, Alberta, Canada. Knife marks the sharp base of the bentonite. Scale bar = 10 cm. ABB, Albertosaurus Bonebed bentonite; BB, Battle bentonite; BFm, Battle Formation; BpB, Bearpaw bentonite; BpFm, Bearpaw Formation; BRG, Belly River Group; HCFm, Horseshoe Canyon Formation; MBB, Morrin Bridge bentonite; OPB, overflow parking bentonite; TRB, Trentham road bentonite. [Colour online.]

Study area in Alberta. (A) Map of Alberta showing extent of Horseshoe Canyo... Available to Purchase

Published: 09 October 2019
Fig. 1. Study area in Alberta. (A) Map of Alberta showing extent of Horseshoe Canyon Formation (yellow shading), Bearpaw Formation (green shading), and Battle Formation (red line). (B) Locations (white dots) of all bentonites dated here. (C) Locations of Horseshoe Canyon Formation bentonites
Journal Article

The first record of dinosaur eggshell from the Horseshoe Canyon Formation (Maastrichtian) of Alberta, Canada Available to Purchase

Gregory F. Funston, Philip J. Currie
Published: 14 February 2018
Canadian Journal of Earth Sciences (2018) 55 (4): 436–441.
DOI: https://doi.org/10.1139/cjes-2017-0273
... direction of slumping. Ellipse encircles three people, for scale. [Colour online.] UALVP 57622-A – UALVP 57622-AD. Prismatoolithus levis. Thirty fragments of eggshell. Felber Troodon Site 2 (FTS-2), Horsethief Member, Horseshoe Canyon Formation, Morrin, Alberta (GPS: 12U 368023, 5726540...
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View PDF for article title, The first record of dinosaur eggshell from the Horseshoe Canyon Formation (Maastrichtian) of <span class="search-highlight">Alberta</span>, Canada
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Fig. 1.

Location of Felber Troodontid Site 2 (FTS-2). (A) Map of Alberta, Canada, h... Available to Purchase

Published: 14 February 2018
Fig. 1. Location of Felber Troodontid Site 2 (FTS-2). (A) Map of Alberta, Canada, highlighting Red Deer River area shown in B. (B) Satellite image (©Google/Landsat) of Red Deer River valley, showing location of FTS-2 (star). (C) Photograph of FTS-2 as seen looking North East. Fine-dotted line
Journal Article

Baby tyrannosaurid bones and teeth from the Late Cretaceous of western North America 1 Available to Purchase

Gregory F. Funston, Mark J. Powers, S. Amber Whitebone, Stephen L. Brusatte, John B. Scannella, John R. Horner, Philip J. Currie
Published: 25 January 2021
Canadian Journal of Earth Sciences (2021) 58 (9): 756–777.
DOI: https://doi.org/10.1139/cjes-2020-0169
...Fig. 1. Localities producing perinatal tyrannosaur bones. Map (A) of Alberta and Montana, showing the Egg Gulch locality and the location of the Red Deer River Valley region near Morrin, Alberta. Satellite image (B) of Red Deer River Valley near Morrin, Alberta, showing locality of TMP...
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View PDF for article title, Baby tyrannosaurid bones and teeth from the Late Cretaceous of western North America 1
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Correlation of Grassy Lake and Cedar Lake ambers using infrared spectroscopy, stable isotopes, and palaeoentomology Available to Purchase

Ryan C. McKellar, Alexander P. Wolfe, Ralf Tappert, Karlis Muehlenbachs
Published: 03 November 2008
Canadian Journal of Earth Sciences (2008) 45 (9): 1061–1082.
DOI: https://doi.org/10.1139/E08-049
... ERV4 Edmonton, Alberta Maastrichtian –25.0 –343 Medium orange; drip end; crumbling ERV5 Edmonton, Alberta Maastrichtian –23.6 –347 Medium orange; sheet flow fragment; solid ERV6 Edmonton, Alberta Maastrichtian –23.8 –339 Medium orange; spherical drop; granular Morrin Bridge...
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View PDF for article title, Correlation of Grassy Lake and Cedar Lake ambers using infrared spectroscopy, stable isotopes, and palaeoentomology
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Litho-, magneto-, bio-, and chronostratigraphy of Upper Cretaceous strata in the Red Deer River valley. Age-stratigraphy lines (ASL) are based on (1) the U–Pb chemical abrasion isotope dilution thermal ionization mass spectrometry (CA–ID–TIMS) ages presented here (large red dots, solid red line with error envelopes (see figure legend)), and (2) Ogg and Hinnov’s (2012) calibrated magnetostratigraphy (small blue dots and dashed blue line). Isolated brown dots indicate previously presented radiometric ages from Alberta bentonites that did not include analytical data; those ages are superseded by the results presented here. Red asterisks in the lithostratigraphy column indicate stratigraphic positions of dated bentonites. Note the multiple sub-chrons in magnetochron 32n. Reference key as follows: (a) Lerbekmo and Braman (2002), (b) Eberth and Braman (2012), (c) Braman (2018), (d) Tsujita (1995), (e) Lerbekmo and Lehtola (2011), (f) Eberth et al. (2013), (g) Renne et al. (2013), (h) Sprain et al. 2015, (i) Eberth and Kamo (2019), (j) Eberth and Deino (2005), (k) Lerbekmo (2002). ABB, Albertosaurus Bonebed bentonite; BB, Battle bentonite; BFm, Battle Formation; BpB, Bearpaw bentonite; C, Carbon Member; D, Drumheller Member; DB, Dorothy Bentonite; DBZ, Drumheller bentonite zone; DPFm, Dinosaur Park Formation; Fm, Formation; H, Horsethief Member; K–Pg, Cretaceous–Paleogene; Leth, Lethbridge; M, Morrin Member; MBB, Morrin Bridge bentonite; OPB, overflow parking bentonite; PAL, Paleocene; T, Tolman Member; TRB, Trentham road bentonite; W, Whitemud Member. [Colour online.]

Litho-, magneto-, bio-, and chronostratigraphy of Upper Cretaceous strata i... Available to Purchase

Published: 09 October 2019
red line with error envelopes (see figure legend)), and (2) Ogg and Hinnov’s (2012) calibrated magnetostratigraphy (small blue dots and dashed blue line). Isolated brown dots indicate previously presented radiometric ages from Alberta bentonites that did not include analytical data; those ages
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Chronostratigraphically calibrated dinosaur biostratigraphy for the Edmonton Group in the Red Deer River valley in the Drumheller area, Alberta, Canada. Modified from Eberth et al. (2013). Vertical bars indicate well-established age ranges for ornithischian (white) and theropod (black) taxa based on stratigraphic occurrences. Numbers in bars indicate totals of identifiable specimens known as of 2017. Dashed vertical lines indicate inferred age ranges. Dinosaur assemblage zones indicated by horizontal shading. Asterisks indicate stratigraphic occurrences of the bentonites. B, Battle Formation; bents, bentonites; BPFm, Bearpaw Formation; C, Carbon Member; D, Drumheller Member; DMT, Drumheller Marine Tongue; DPFm, Dinosaur Park Formation; H, Horsethief Member; Leth, Lethbridge coal zone; M, Morrin Member; T, Tolman Member; SCFm, Scollard Formation; W, Whitemud Member.

Chronostratigraphically calibrated dinosaur biostratigraphy for the Edmonto... Available to Purchase

Published: 09 October 2019
Fig. 8. Chronostratigraphically calibrated dinosaur biostratigraphy for the Edmonton Group in the Red Deer River valley in the Drumheller area, Alberta, Canada. Modified from Eberth et al. (2013) . Vertical bars indicate well-established age ranges for ornithischian (white) and theropod (black
Journal Article

Stratigraphy of the Danek Bonebed (Upper Cretaceous Horseshoe Canyon Formation, central Alberta) and correlations with strata in the Drumheller and Grande Prairie regions Available to Purchase

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
..., Drumheller Member; H, Horsethief Member; Litho-/Seq Strat, Lithostratigraphy and Sequence-Stratigraphy; M, Morrin Member; S, Strathmore Member; T, Tolman Member; W, Whitemud Member; UALVP, University of Alberta Laboratory of Vertebrate Paleontology. ...
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View PDF for article title, Stratigraphy of the Danek Bonebed (Upper Cretaceous Horseshoe Canyon Formation, central <span class="search-highlight">Alberta</span>) and correlations with strata in the Drumheller and Grande Prairie regions
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MAGNETOSTRATIGRAPHIC AND BIOSTRATIGRAPHIC CORRELATIONS OF MAASTRICHTIAN TO EARLY PALEOCENE STRATA BETWEEN SOUTH-CENTRAL ALBERTA AND SOUTHWESTERN SASKATCHEWAN Available to Purchase

J. F. Lerbekmo
Published: 01 June 1985
Bulletin of Canadian Petroleum Geology (1985) 33 (2): 213–226.
DOI: https://doi.org/10.35767/gscpgbull.33.2.213
... IOSTRATIGRAPHY Figure 4 shows two composite sections, one composed of sections at Scollard Canyon and west of Morrin, sepa- rated by about 25 km, in the Red Deer Valley of Alberta, and the other of sections at Ravenscrag Butte and Eastend, separated by about 20 km, along the Frenchman River Valley in the Cypress...
View PDF for article title, MAGNETOSTRATIGRAPHIC AND BIOSTRATIGRAPHIC CORRELATIONS OF MAASTRICHTIAN TO EARLY PALEOCENE STRATA BETWEEN SOUTH-CENTRAL <span class="search-highlight">ALBERTA</span> AND SOUTHWESTERN SASKATCHEWAN
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Journal Article

New information on the rare horned dinosaur Arrhinoceratops brachyops (Ornithischia: Ceratopsidae) from the Upper Cretaceous of Alberta, Canada Available to Purchase

Jordan C. Mallon, Robert Holmes, Jason S. Anderson, Andrew A. Farke, David C. Evans
Published: 05 May 2014
Canadian Journal of Earth Sciences (2014) 51 (6): 618–634.
DOI: https://doi.org/10.1139/cjes-2014-0028
... specimens plausibly attributable to A. brachyops that suggest a minimum age range of approximately 750 ka for this species. Upper Horsethief Member to Drumheller Marine Tongue of Upper Morrin Member of Horseshoe Canyon Formation, Alberta, Canada ( sensu Eberth and Braman 2012 ). ROM 1439...
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View PDF for article title, New information on the rare horned dinosaur Arrhinoceratops brachyops (Ornithischia: Ceratopsidae) from the Upper Cretaceous of <span class="search-highlight">Alberta</span>, Canada
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The palynostratigraphy of the Edmonton Group (Upper Cretaceous) of Alberta, Canada Available to Purchase

Satish K. Srivastava, Dennis R. Braman
Journal: Palynology
Published: 01 June 2013
Palynology (2013) 37 (1): 1–27.
DOI: https://doi.org/10.1080/01916122.2012.673288
... Tolman Bridge, Alberta; RTMP2003.206; UTM 12:0360166;5745703 Ornithimid Site, Alberta; RTMP1996.202; UTM 12:0364819;5734723 West Rowley, Alberta; RTMP2002.212; UTM 12:0364314;5739845 Morrin Bridge North, Alberta; RTMP1990.229; UTM 12:0366000;5729500 Morrin Bridge, Alberta; RTMP2002.210; UTM...
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View PDF for article title, The palynostratigraphy of the Edmonton Group (Upper Cretaceous) of <span class="search-highlight">Alberta</span>, Canada
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A history of Albertosaurus discoveries in Alberta, Canada This article is one of a series of papers published in this Special Issue on the theme Albertosaurus . Available to Purchase

Darren H. Tanke, Philip J. Currie
Published: 07 September 2010
Canadian Journal of Earth Sciences (2010) 47 (9): 1197–1211.
DOI: https://doi.org/10.1139/E10-057
...Darren H. Tanke; Philip J. Currie Abstract After many years of taxonomic uncertainty, Albertosaurus was established as a new genus in 1905, the year Alberta became a province of Canada. Gorgosaurus is a closely related tyrannosaurid from the Judithian beds of southern Alberta that was subsequently...
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View PDF for article title, A history of Albertosaurus discoveries in <span class="search-highlight">Alberta</span>, Canada This article is one of a series of papers published in this Special Issue on the theme Albertosaurus .
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THOMAS CHESMER WESTON AND THE RED DEER RIVER FOSSIL FIELDS Available to Purchase

Loris S. Russell
Published: 01 April 1990
Earth Sciences History (1990) 9 (1): 3–5.
DOI: https://doi.org/10.17704/eshi.9.1.vg5v2641u43948p5
... of Alberta, assisted by Roderick McKenzie of Red Deer. Weston made important fossil finds on this trip, but his most notable discovery was the “Belly River” fossil field, now the Dinosaur Provincial Park. He recognized that this field was older than that of the “Edmonton Series” of Tyrrell, and predicted...
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