David C. Evans (paleontologist)

Last updated
Canadian paleontologist David Evans. David Evans.jpg
Canadian paleontologist David Evans.

David Christopher Evans (born 1980) [1] is a Canadian palaeontologist and evolutionary biologist who specializes in the evolution and paleobiology of Cretaceous dinosaurs in western North America. He received his B.Sc. from the University of British Columbia and his Ph.D. from the University of Toronto. [2] He is a fellow of the Royal Canadian Geographical Society (RCGS) and a member of the Royal Society of Canada (The College of New Scholars, Artists and Scientists) [3] [4] and currently serves as the Senior Curator and Temerty Chair of Vertebrate Paleontology at the Royal Ontario Museum in Toronto, Canada. He is also a faculty member in the Department of Ecology & Evolutionary Biology at the University of Toronto. Evans is particularly renowned for his work on the paleobiology of hadrosaur ("duck-billed") dinosaurs and has conducted international research on a wide variety of paleontological topics.

Contents

Biography

David Evans was born in Ontario and raised in Kelowna, British Columbia. [2] He received his B.Sc. from the Integrated Sciences Program of the University of British Columbia in 2003, where he completed an undergraduate thesis on skull growth and variation in the hadrosaur Corythosaurus . Over the course of his undergraduate degree, Evans worked as a field technician at the Royal Tyrell Museum of Palaeontology in Drumheller. He then completed his Ph.D. in 2007 under the supervision of Canadian paleontologist Robert Reisz at the University of Toronto in the Department of Ecology & Evolutionary Biology on development and phylogenetic relationships of lambeosaurine hadrosaurs (dissertation title: "Ontogeny and evolution of lambeosaurine dinosaurs (Ornithischia: Hadrosauridae)."). [5] Following the completion of his Ph.D., Evans was hired as a curator by the Royal Ontario Museum in Toronto, Canada, where he currently serves as the Temerty Chair in Vertebrate Palaeontology. [6] He has been part of the faculty in the Department of Ecology and Evolutionary Biology at the University of Toronto since 2007 and currently holds the rank of Associate Professor. [7] He is also the owner of a male Shiba Inu named Doug.

Academic contributions

David Evans' research focuses primarily on the evolution and paleobiology of Late Cretaceous dinosaurs, particularly in North American ecosystems. He has published extensively on various aspects of hadrosaurs, following his undergraduate and doctoral dissertations, including phylogenetics, [8] development, [9] [10] [11] biostratigraphy, [12] pathology, [13] and anatomy. [14] [15] [12] [16] [17] [18] [19] He has published more than 80 peer-reviewed articles and has several publications in leading scientific journals, including Biological Reviews, Current Biology, Methods in Ecology and Evolution, Nature Communications, Proceedings of the National Academy of Sciences, Proceedings of the Royal Society B: Biological Sciences, and Science, and has contributed book chapters to several edited volumes. Evans' current research interests focus primarily on the vast majority of the well-known Late Cretaceous dinosaur clades found in western North America, and he maintains active fieldwork programs in Alberta and Montana. He has also conducted research on dinosaur material from Mongolia [20] [21] and tetrapod-bearing deposits in Sudan. [22] [23] [24] [25] Evans has also been involved with both fieldwork and research of the Early Jurassic sauropodomorph Massospondylus from South Africa [26] [27] [28] and has conducted research on pelycosaurian-grade Permian synapsids, [29] [30] [31] [32] Permian temnospondyls, [33] the iconic Pleistocene felid Smilodon , [34] [35] and choristoderes. [36] [37]

Evans has been a part of various teams that have named over a dozen new genera or species of dinosaurs. New ceratopsians named by Evans and colleagues include Xenoceratops foremostensis Ryan, Evans, & Shepherd, 2012; [38] Gryphoceratops morrisoni Ryan, Evans, Currie, Brown, & Brinkman, 2012; [39] Unescoceratops koppelhusi Ryan, Evans, Currie, Brown, & Brinkman, 2012; [39] Mercuriceratops gemini Ryan, Evans, Loewen, & Currie, 2014; [40] Wendiceratops pinhorensis Evans & Ryan, 2015; [41] Spiclypeus shipporum Mallon, Ott, Larson, Iuliano, & Evans, 2016; [42] Ferrisaurus sustutensis Arbour & Evans, 2019; [43] and Stellasaurus ancellae Wilson, Ryan & Evans, 2020. [44] Evans was also involved in the naming of the ornithopods Albertadromeus syntarsus Brown, Evans, Ryan, & Russell, 2013; [45] Plesiohadros djadokhtaensis Tsogtbaatar, Weishampel, Evans, & Watabe, 2014; [46] and Gobihadros mongoliensis Tsogtbaatar, Weishampel, Evans, & Watabe, 2019; [47] the pachycephalosaurians Acrotholus audeti Evans, Schott, Larson, Brown, & Ryan, 2013; [48] and Foraminacephale brevis Schott & Evans, 2016; [49] the dromaeosaurid Acheroraptor temertyorum Evans, Currie, & Larson, 2013; [50] the ankylosaurid Zuul crurivastator Arbour & Evans, 2017; the troodontid Albertavenator curriei Evans, Cullen, Larson, & Rego, 2017; [51] and Sinocephale bexelli Evans, Brown, You, & Campione, 2021. [52] Evans has also been involved with the naming of various new non-dinosaurian taxa, such as the Devonian onychodontiform fish Onychodus eriensis Mann, Rudkin, Evans, & Laflamme, 2017; [53] the Carboniferous parareptile Erpetonyx arsenaultorum Modesto, Scott, MacDougall, Sues, Evans, & Reisz, 2015; [54] the Cretaceous baenid turtle Neurankylus lithographicus Larson, Longrich, Evans, & Ryan, 2013; [55] and the Cretaceous dyrosaurid crocodilian Brachiosuchus kababishensis Salih, Evans, Bussert, Klein & Müller, 2021. [25]

As a professor at the University of Toronto, Evans supervises numerous graduate students in the Department of Ecology & Evolutionary Biology. Former M.Sc. students include Arjan Mann (National Museum of Natural History); Ryan Schott (National Museum of Natural History); Chris McGarrity (Field Museum); Collin Van Buren (Ohio State University); and Denise Maranga. Former Ph.D. students include Nicolas Campione (University of New England); Caleb Brown (Royal Tyrell Museum); Kirstin Brink (University of Manitoba); Thomas Cullen (Carleton University); Mateusz Wosik (Misericordia University), Kentaro Chiba (Okayama University of Science), and D. Cary Woodruff (Great Plains Dinosaur Museum). [2] Evans also serves on the editorial board of several academic journals, including FACETS [56] and Biology Letters, [57] and has previously served as an editor at PLOS ONE.

Outreach and public media

Evans has been featured in numerous documentaries, including the History Channel's 2015 documentary Dino Hunt Canada [58] and various episodes of Daily Planet and radio and TV interviews, as well as appeared in the TVOKids shows Now You Know, Canada Crew, Dino Dana & Dino Dan: Trek's Adventures. He has also appeared in Dino Dana: The Movie. On top of that, he has helped to develop several exhibits, including the traveling "Ultimate Dinosaurs" exhibit in 2012, [59] the permanent James and Louise Temerty Galleries of the Age of Dinosaurs at the Royal Ontario Museum (ROM), [60] and temporary exhibits at the ROM, including "Dinosaur Eggs & Babies: Remarkable Fossils from South Africa" (2014) [61] and "Zuul, Life of an Armoured Dinosaur" (2018-2019). [62] Evans has also served on numerous committees of the Society of Vertebrate Paleontology and the Canadian Society of Vertebrate Paleontology.

Related Research Articles

<span class="mw-page-title-main">Bone bed</span> Geological stratum or deposit containing bones

A bone bed is any geological stratum or deposit that contains bones of whatever kind. Inevitably, such deposits are sedimentary in nature. Not a formal term, it tends to be used more to describe especially dense collections such as Lagerstätte. It is also applied to brecciated and stalagmitic deposits on the floor of caves, which frequently contain osseous remains.

<i>Maiasaura</i> Extinct genus of reptiles

Maiasaura is a large herbivorous saurolophine hadrosaurid ("duck-billed") dinosaur genus that lived in the area currently covered by the state of Montana and the province of Alberta, Canada, in the Upper Cretaceous Period, about 76.7 million years ago. Maiasaura peeblesorum is the state fossil of Montana.

<span class="mw-page-title-main">Marginocephalia</span> Extinct clade of dinosaurs

Marginocephalia is a clade of ornithischian dinosaurs that is characterized by a bony shelf or margin at the back of the skull. These fringes were likely used for display. There are two clades included in Marginocephalia: the thick-skulled Pachycephalosauria and the horned Ceratopsia. All members of Marginocephalia were primarily herbivores. They basally used gastroliths to aid in digestion of tough plant matter until they convergently evolved tooth batteries in Neoceratopsia and Pachycephalosauria. Marginocephalia first evolved in the Jurassic Period and became more common in the Cretaceous. They are basally small facultative quadrupeds while derived members of the group are large obligate quadrupeds. Primitive marginocephalians are found in Asia, but the group migrated upwards into North America.

<span class="mw-page-title-main">Pachycephalosauria</span> Extinct clade of dinosaurs

Pachycephalosauria is a clade of ornithischian dinosaurs. Along with Ceratopsia, it makes up the clade Marginocephalia. With the exception of two species, most pachycephalosaurs lived during the Late Cretaceous Period, dating between about 85.8 and 66 million years ago. They are exclusive to the Northern Hemisphere, all of them being found in North America and Asia. They were all bipedal, herbivorous/omnivorous animals with thick skulls. Skulls can be domed, flat, or wedge-shaped depending on the species, and are all heavily ossified. The domes were often surrounded by nodes and/or spikes. Partial skeletons have been found of several pachycephalosaur species, but to date no complete skeletons have been discovered. Often isolated skull fragments are the only bones that are found.

<i>Pachycephalosaurus</i> Genus of pachycephalosaurid dinosaurs

Pachycephalosaurus is a genus of pachycephalosaurid ornithischian dinosaur. The type species, P. wyomingensis, is the only known species, but some researchers argue that the genus Stygimoloch might be a second species, P. spinifer or a juvenile specimen of P. wyomingensis. It lived during the Maastrichtian age of the Late Cretaceous period in what is now western North America. Remains have been excavated in Montana, South Dakota, Wyoming, and Alberta. The species is known mainly from a single skull, plus a few extremely thick skull roofs. More complete fossils would come to be found in the following years.

<i>Prenoceratops</i> Genus of reptiles (fossil)

Prenoceratops, is a genus of herbivorous ceratopsian dinosaur from the Late Cretaceous Period. It was a relatively small dinosaur, reaching 1.3 m (4.3 ft) in length and 20 kg (44 lb) in body mass. Its fossils have been found in the upper Two Medicine Formation in the present-day U.S. state of Montana, in Campanian age rock layers that have been dated to 74.3 million years ago. Fossils were also found in the Oldman Formation in the modern day Canadian province of Alberta, dating to around 77 million years ago.

<span class="mw-page-title-main">Judith River Formation</span> Fossil-bearing geologic formation in Montana, part of the Judith River Group

The Judith River Formation is a fossil-bearing geologic formation in Montana, and is part of the Judith River Group. It dates to the Late Cretaceous, between 79 and 75.3 million years ago, corresponding to the "Judithian" land vertebrate age. It was laid down during the same time period as portions of the Two Medicine Formation of Montana and the Oldman Formation of Alberta. It is an historically important formation, explored by early American paleontologists such as Edward Drinker Cope, who named several dinosaurs from scrappy remains found here on his 1876 expedition. Modern work has found nearly complete skeletons of the hadrosaurid Brachylophosaurus.

<span class="mw-page-title-main">Horseshoe Canyon Formation</span> Geological formation in Canada

The Horseshoe Canyon Formation is a stratigraphic unit of the Western Canada Sedimentary Basin in southwestern Alberta. It takes its name from Horseshoe Canyon, an area of badlands near Drumheller.

<span class="mw-page-title-main">Lambeosaurini</span> Extinct tribe of dinosaurs

Lambeosaurini, previously known as Corythosaurini, is one of four tribes of hadrosaurid ornithopods from the family Lambeosaurinae. It is defined as all lambeosaurines closer to Lambeosaurus lambei than to Parasaurolophus walkeri, Tsintaosaurus spinorhinus, or Aralosaurus tuberiferus, which define the other three tribes. Members of this tribe possess a distinctive protruding cranial crest. Lambeosaurins walked the earth for a period of around 12 million years in the Late Cretaceous, though they were confined to regions of modern-day North America and Asia.

<span class="mw-page-title-main">Lambeosaurinae</span> Extinct subfamily of dinosaurs

Lambeosaurinae is a group of crested hadrosaurid dinosaurs.

<span class="mw-page-title-main">Centrosaurinae</span> Extinct subfamily of dinosaurs

Centrosaurinae is a subfamily of ceratopsid, a group of large quadrupedal ornithischian dinosaur. Centrosaurine fossil remains are known primarily from the northern region of Laramidia but isolated taxa have been found in China and Utah as well.

<span class="mw-page-title-main">Prince Creek Formation</span> Geological formation

The Prince Creek Formation is a geological formation in Alaska with strata dating to the Early Maastrichtian stage of the Late Cretaceous. Dinosaur remains are among the fossils that have been recovered from the formation.

<i>Acrotholus</i> Extinct genus of dinosaurs

Acrotholus is an extinct genus of pachycephalosaur dinosaur that lived during the Santonian of the late Cretaceous, in the Milk River Formation of Canada. The type species, A. audeti, was named after Roy Audet allowing access to his ranch leading to the discovery of the species. The discovery of this specimen lead to several new revelations in the fossil records questioning the preservation of small-bodied organisms along with the evolution of early pachycephalosaurs. The iconic cranial dome found on Acrotholus makes it one of the earliest indisputable known members of the pachycephalosaur family.

References

  1. ↑ "Evans, David C. (David Christopher), 1980-". id.loc.gov. Retrieved December 1, 2021.
  2. 1 2 3 "People". David Evans Lab. 2011-05-30. Retrieved 2020-01-21.
  3. ↑ "ROM dinosaur palaeontologist Dr. David Evans named to Royal Society of Canada". Royal Ontario Museum. 2019-09-10.
  4. ↑ King, Perry (2019-09-10). "Three U of T faculty appointed members of the Royal Society of Canada's college for new scholars". University of Toronto News.
  5. ↑ Laurin, Michel; Sues, Hans-Dieter (2013-11-01). "Robert R. Reisz – Renaissance paleontologist". Comptes Rendus Palevol. A tribute to Robert R. Reisz / Un hommage à Robert R. Reisz. 12 (7): 393–404. Bibcode:2013CRPal..12..393L. doi:10.1016/j.crpv.2012.09.001. ISSN   1631-0683.
  6. ↑ "David C. Evans". Royal Ontario Museum. Retrieved 2020-01-21.
  7. ↑ "D. Evans". www.eeb.utoronto.ca. Retrieved 2020-01-21.
  8. ↑ Evans, David C.; Reisz, Robert R. (2007-06-12). "Anatomy and Relationships ofLambeosaurus magnicristatus, a crested hadrosaurid dinosaur (Ornithischia) from the Dinosaur Park Formation, Alberta". Journal of Vertebrate Paleontology. 27 (2): 373–393. doi:10.1671/0272-4634(2007)27[373:aarolm]2.0.co;2. ISSN   0272-4634. S2CID   86070917.
  9. ↑ Evans, David C.; Forster, Catherine A.; Reisz, Robert R. (2005). "The type specimen of Tetragonosaurus erectofrons (Ornithischia: Hadrosauridae) and the identification of juvenile lambeosaurines". In Currie, Philip J.; Koppelhus, Eva B. (eds.). Dinosaur Provincial Park : a spectacular ancient ecosystem revealed. Bloomington: Indiana University Press. pp.  349-366. ISBN   0-253-34595-2. OCLC   57965735.
  10. ↑ Evans, David C.; Reisz, Robert R.; Dupuis, Kevin (2007-09-12). "A juvenileParasaurolophus(Ornithischia: Hadrosauridae) Braincase from Dinosaur Provincial Park, Alberta, with comments on crest ontogeny in the genus". Journal of Vertebrate Paleontology. 27 (3): 642–650. doi:10.1671/0272-4634(2007)27[642:ajpohb]2.0.co;2. ISSN   0272-4634. S2CID   85795794.
  11. ↑ Wosik, Mateusz; Goodwin, Mark B.; Evans, David C. (2019-07-15). "Nestling-sized hadrosaurine cranial material from the Hell Creek Formation of northeastern Montana, USA, with an analysis of cranial ontogeny in Edmontosaurus annectens". PaleoBios. 36. doi: 10.5070/p9361044525 . ISSN   2373-8189. S2CID   201203608.
  12. 1 2 Evans, David C.; Bavington, Rebecca; Campione, Nicolás E. (2009). "An unusual hadrosaurid braincase from the Dinosaur Park Formation and the biostratigraphy of Parasaurolophus (Ornithischia: Lambeosaurinae) from southern Alberta". Canadian Journal of Earth Sciences. 46 (11): 791–800. Bibcode:2009CaJES..46..791E. doi:10.1139/e09-050. ISSN   0008-4077.
  13. ↑ Bertozzo, Filippo; Manucci, Fabio; Dempsey, Matthew; Tanke, Darren H.; Evans, David C.; Ruffell, Alastair; Murphy, Eileen (2020). "Description and etiology of paleopathological lesions in the type specimen of Parasaurolophus walkeri (Dinosauria: Hadrosauridae), with proposed reconstructions of the nuchal ligament". Journal of Anatomy. 238 (5): 1055–1069. doi:10.1111/joa.13363. ISSN   0021-8782. PMC   8053592 . PMID   33289113.
  14. ↑ Evans, D. C. (2006-01-01). "Nasal cavity homologies and cranial crest function in lambeosaurine dinosaurs". Paleobiology. 32 (1): 109–125. doi:10.1666/0094-8373(2006)032[0109:nchacc]2.0.co;2. ISSN   0094-8373.
  15. ↑ Evans, David C.; Ridgely, Ryan; Witmer, Lawrence M. (2009). "Endocranial Anatomy of Lambeosaurine Hadrosaurids (Dinosauria: Ornithischia): A Sensorineural Perspective on Cranial Crest Function". The Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology. 292 (9): 1315–1337. doi: 10.1002/ar.20984 . ISSN   1932-8486. PMID   19711466. S2CID   15177074.
  16. ↑ Evans, David C. (2010-05-26). "Cranial anatomy and systematics of Hypacrosaurus altispinus, and a comparative analysis of skull growth in lambeosaurine hadrosaurids (Dinosauria: Ornithischia)". Zoological Journal of the Linnean Society. 159 (2): 398–434. doi: 10.1111/j.1096-3642.2009.00611.x . ISSN   0024-4082.
  17. ↑ Lowi-Merri, Talia M.; Evans, David C. (2020-06-01). "Cranial variation in Gryposaurus and biostratigraphy of hadrosaurines (Ornithischia: Hadrosauridae) from the Dinosaur Park Formation of Alberta, Canada". Canadian Journal of Earth Sciences. 57 (6): 765–779. Bibcode:2020CaJES..57..765L. doi:10.1139/cjes-2019-0073. ISSN   0008-4077. S2CID   210619635.
  18. ↑ Chiarenza, Alfio Alessandro; Fabbri, Matteo; Consorti, Lorenzo; Muscioni, Marco; Evans, David C.; Cantalapiedra, Juan L.; Fanti, Federico (2021). "An Italian dinosaur Lagerstätte reveals the tempo and mode of hadrosauriform body size evolution". Scientific Reports. 11 (1): 23295. Bibcode:2021NatSR..1123295C. doi:10.1038/s41598-021-02490-x. ISSN   2045-2322. PMC   8640049 . PMID   34857789.
  19. ↑ Gates, Terry A.; Evans, David C.; Sertich, Joseph J.W. (2021-01-25). "Description and rediagnosis of the crested hadrosaurid (Ornithopoda) dinosaur Parasaurolophus cyrtocristatus on the basis of new cranial remains". PeerJ. 9: e10669. doi: 10.7717/peerj.10669 . ISSN   2167-8359. PMC   7842145 . PMID   33552721.
  20. ↑ Evans, David C.; Brown, Caleb Marshall; Ryan, Michael J.; Tsogtbaatar, Khishigjav (2011-02-10). "Cranial ornamentation and ontogenetic status ofHomalocephale calathocercos(Ornithischia: Pachycephalosauria) from the Nemegt Formation, Mongolia". Journal of Vertebrate Paleontology. 31 (1): 84–92. Bibcode:2011JVPal..31...84E. doi:10.1080/02724634.2011.546287. ISSN   0272-4634. S2CID   84908604.
  21. ↑ Evans, David C.; Hayashi, Shoji; Chiba, Kentaro; Watabe, Mahito; Ryan, Michael J.; Lee, Yuong-Nam; Currie, Philip J.; Tsogtbaatar, Khishigjav; Barsbold, Rinchen (2018). "Morphology and histology of new cranial specimens of Pachycephalosauridae (Dinosauria: Ornithischia) from the Nemegt Formation, Mongolia". Palaeogeography, Palaeoclimatology, Palaeoecology. 494: 121–134. Bibcode:2018PPP...494..121E. doi:10.1016/j.palaeo.2017.11.029. ISSN   0031-0182.
  22. ↑ Salih, Khalaf Allah O.; Evans, David C.; Bussert, Robert; Klein, Nicole; Nafi, Mutwakil; Müller, Johannes (2015-12-30). "First record ofHyposaurus(Dyrosauridae, Crocodyliformes) from the Upper Cretaceous Shendi Formation of Sudan". Journal of Vertebrate Paleontology. 36 (1): e1115408. doi:10.1080/02724634.2016.1115408. ISSN   0272-4634. S2CID   86299028.
  23. ↑ Klein, Nicole; Bussert, Robert; Evans, David; Salih, Khalaf Allah O.; Eisawi, Ali A. M.; Nafi, Mutwakil; Müller, Johannes (2016-02-22). "Turtle remains from the Wadi Milk Formation (Upper Cretaceous) of Northern Sudan". Palaeobiodiversity and Palaeoenvironments. 96 (2): 281–303. Bibcode:2016PdPe...96..281K. doi:10.1007/s12549-015-0225-9. ISSN   1867-1594. S2CID   131157664.
  24. ↑ Owusu Agyemang, Prince C.; Roberts, Eric M.; Bussert, Robert; Evans, David; Müller, Johannes (2019). "U-Pb detrital zircon constraints on the depositional age and provenance of the dinosaur-bearing Upper Cretaceous Wadi Milk formation of Sudan". Cretaceous Research. 97: 52–72. Bibcode:2019CrRes..97...52O. doi:10.1016/j.cretres.2019.01.005. ISSN   0195-6671. S2CID   134676587.
  25. 1 2 Salih, Khalafallah O.; Evans, David C.; Bussert, Robert; Klein, Nicole; Mueller, Johannes (2021-07-07). "Brachiosuchus kababishensis , a new long-snouted dyrosaurid (Mesoeucrocodylia) from the Late Cretaceous of north central Sudan". Historical Biology. 34 (5): 821–840. doi:10.1080/08912963.2021.1947513. ISSN   0891-2963. S2CID   237801202.
  26. ↑ Reisz, Robert R.; Scott, Diane; Sues, Hans-Dieter; Evans, David C.; Raath, Michael A. (2005-07-29). "Embryos of an Early Jurassic Prosauropod Dinosaur and Their Evolutionary Significance" (PDF). Science. 309 (5735): 761–764. Bibcode:2005Sci...309..761R. doi:10.1126/science.1114942. ISSN   0036-8075. PMID   16051793. S2CID   37548361.
  27. ↑ Reisz, Robert R.; Evans, David C.; Sues, Hans-Dieter; Scott, Diane (2010-12-02). "Embryonic skeletal anatomy of the sauropodomorph dinosaur Massospondylus from the Lower Jurassic of South Africa". Journal of Vertebrate Paleontology. 30 (6): 1653–1665. Bibcode:2010JVPal..30.1653R. doi:10.1080/02724634.2010.521604. ISSN   0272-4634. S2CID   84599991.
  28. ↑ Reisz, R. R.; Evans, D. C.; Roberts, E. M.; Sues, H.-D.; Yates, A. M. (2012-01-24). "Oldest known dinosaurian nesting site and reproductive biology of the Early Jurassic sauropodomorph Massospondylus". Proceedings of the National Academy of Sciences. 109 (7): 2428–2433. Bibcode:2012PNAS..109.2428R. doi: 10.1073/pnas.1109385109 . ISSN   0027-8424. PMC   3289328 . PMID   22308330.
  29. ↑ Maddin, Hillary C.; Evans, David C.; Reisz, Robert R. (2006-12-11). "An Early Permian varanodontine varanopid (Synapsida: Eupelycosauria) from the Richards Spur locality, Oklahoma". Journal of Vertebrate Paleontology. 26 (4): 957–966. doi:10.1671/0272-4634(2006)26[957:aepvvs]2.0.co;2. ISSN   0272-4634. S2CID   130455511.
  30. ↑ Bazzana, Kayla D.; Evans, David C.; Bevitt, Joseph J.; Reisz, Robert R. (2021-11-14). "Neurosensory anatomy of Varanopidae and its implications for early synapsid evolution". Journal of Anatomy. 240 (5): 833–849. doi:10.1111/joa.13593. ISSN   0021-8782. PMC   9005680 . PMID   34775594.
  31. ↑ Evans, David C.; Maddin, Hillary C.; Reisz, Robert R. (2009). "A re-evaluation of sphenacodontid synapsid material from the Lower Permian fissure fills near Richards Spur, Oklahoma". Palaeontology. 52 (1): 219–227. Bibcode:2009Palgy..52..219E. doi: 10.1111/j.1475-4983.2008.00837.x . ISSN   0031-0239.
  32. ↑ Brink, Kirstin S.; Maddin, Hillary C.; Evans, David C.; Reisz, Robert R. (2015). "Re-evaluation of the historic Canadian fossil Bathygnathus borealis from the Early Permian of Prince Edward Island". Canadian Journal of Earth Sciences. 52 (12): 1109–1120. Bibcode:2015CaJES..52.1109B. doi: 10.1139/cjes-2015-0100 . ISSN   0008-4077.
  33. ↑ Maddin, Hillary C.; Fröbisch, Nadia B.; Evans, David C.; Milner, Andrew R. (2013). "Reappraisal of the Early Permian amphibamid Tersomius texensis and some referred material". Comptes Rendus Palevol. 12 (7–8): 447–461. Bibcode:2013CRPal..12..447M. doi:10.1016/j.crpv.2013.06.007. ISSN   1631-0683.
  34. ↑ Reynolds, Ashley R.; Seymour, Kevin L.; Evans, David C. (2019). "Late Pleistocene records of felids from Medicine Hat, Alberta, including the first Canadian record of the sabre-toothed cat Smilodon fatalis". Canadian Journal of Earth Sciences. 56 (10): 1052–1060. Bibcode:2019CaJES..56.1052R. doi:10.1139/cjes-2018-0272. hdl: 1807/96725 . ISSN   0008-4077. S2CID   134586651.
  35. ↑ Reynolds, Ashley R.; Seymour, Kevin L.; Evans, David C. (2021-01-22). "Smilodon fatalis siblings reveal life history in a saber-toothed cat". iScience. 24 (1): 101916. Bibcode:2021iSci...24j1916R. doi:10.1016/j.isci.2020.101916. ISSN   2589-0042. PMC   7835254 . PMID   33532710.
  36. ↑ Dudgeon, Thomas W.; Maddin, Hillary C.; Evans, David C.; Mallon, Jordan C. (2020-01-06). "Computed tomography analysis of the cranium of Champsosaurus lindoei and implications for choristoderan neomorphic ossification". Journal of Anatomy. 236 (4): 630–659. doi: 10.1111/joa.13134 . ISSN   0021-8782. PMC   7083570 . PMID   31905243.
  37. ↑ Dudgeon, Thomas W.; Maddin, Hillary C.; Evans, David C.; Mallon, Jordan C. (2020-04-28). "The internal cranial anatomy of Champsosaurus (Choristodera: Champsosauridae): Implications for neurosensory function". Scientific Reports. 10 (1): 7122. Bibcode:2020NatSR..10.7122D. doi:10.1038/s41598-020-63956-y. ISSN   2045-2322. PMC   7188685 . PMID   32346021.
  38. ↑ Ryan, Michael J.; Evans, David C.; Shepherd, Kieran M. (2012-10-01). Sues, Hans (ed.). "A new ceratopsid from the Foremost Formation (middle Campanian) of Alberta". Canadian Journal of Earth Sciences. 49 (10): 1251–1262. Bibcode:2012CaJES..49.1251R. doi: 10.1139/e2012-056 . ISSN   0008-4077.
  39. 1 2 Ryan, Michael J.; Evans, David C.; Currie, Philip J.; Brown, Caleb M.; Brinkman, Don (2012). "New leptoceratopsids from the Upper Cretaceous of Alberta, Canada". Cretaceous Research. 35: 69–80. Bibcode:2012CrRes..35...69R. doi:10.1016/j.cretres.2011.11.018.
  40. ↑ Ryan, Michael J.; Evans, David C.; Currie, Philip J.; Loewen, Mark A. (2014). "A new chasmosaurine from northern Laramidia expands frill disparity in ceratopsid dinosaurs". Naturwissenschaften. 101 (6): 505–512. Bibcode:2014NW....101..505R. doi:10.1007/s00114-014-1183-1. ISSN   0028-1042. PMID   24859020. S2CID   13957187.
  41. ↑ Evans, David C.; Ryan, Michael J. (2015-07-08). "Cranial Anatomy of Wendiceratops pinhornensis gen. et sp. nov., a Centrosaurine Ceratopsid (Dinosauria: Ornithischia) from the Oldman Formation (Campanian), Alberta, Canada, and the Evolution of Ceratopsid Nasal Ornamentation". PLOS ONE. 10 (7): e0130007. Bibcode:2015PLoSO..1030007E. doi: 10.1371/journal.pone.0130007 . ISSN   1932-6203. PMC   4496092 . PMID   26154293.
  42. ↑ Mallon, Jordan C.; Ott, Christopher J.; Larson, Peter L.; Iuliano, Edward M.; Evans, David C. (2016-05-18). "Spiclypeus shipporum gen. et sp. nov., a Boldly Audacious New Chasmosaurine Ceratopsid (Dinosauria: Ornithischia) from the Judith River Formation (Upper Cretaceous: Campanian) of Montana, USA". PLOS ONE. 11 (5): e0154218. Bibcode:2016PLoSO..1154218M. doi: 10.1371/journal.pone.0154218 . ISSN   1932-6203. PMC   4871577 . PMID   27191389.
  43. ↑ Arbour, Victoria M.; Evans, David C. (2019-11-07). "A new leptoceratopsid dinosaur from Maastrichtian-aged deposits of the Sustut Basin, northern British Columbia, Canada". PeerJ. 7: e7926. doi: 10.7717/peerj.7926 . ISSN   2167-8359. PMC   6842559 . PMID   31720103.
  44. ↑ Wilson, John P.; Ryan, Michael J.; Evans, David C. (2020-04-29). "A new, transitional centrosaurine ceratopsid from the Upper Cretaceous Two Medicine Formation of Montana and the evolution of the 'Styracosaurus-line' dinosaurs". Royal Society Open Science. 7 (4): 200284. Bibcode:2020RSOS....700284W. doi:10.1098/rsos.200284. ISSN   2054-5703. PMC   7211873 . PMID   32431910.
  45. ↑ Brown, Caleb Marshall; Evans, David C.; Ryan, Michael J.; Russell, Anthony P. (2013). "New data on the diversity and abundance of small-bodied ornithopods (Dinosauria, Ornithischia) from the Belly River Group (Campanian) of Alberta". Journal of Vertebrate Paleontology. 33 (3): 495–520. Bibcode:2013JVPal..33..495B. doi:10.1080/02724634.2013.746229. ISSN   0272-4634. S2CID   129160518.
  46. ↑ Tsogtbaatar, Khishigjav; Weishampel, David B.; Evans, David C.; Watabe, Mahito (2014). "A new hadrosauroid (Plesiohadros djadokhtaensis) from the Late Cretaceous Djadokhtan Fauna of southern Mongolia". Hadrosaurs. Bloomington: Indiana University Press. pp. 108–135.
  47. ↑ Tsogtbaatar, Khishigjav; Weishampel, David B.; Evans, David C.; Watabe, Mahito (2019-04-17). "A new hadrosauroid (Dinosauria: Ornithopoda) from the Late Cretaceous Baynshire Formation of the Gobi Desert (Mongolia)". PLOS ONE. 14 (4): e0208480. Bibcode:2019PLoSO..1408480T. doi: 10.1371/journal.pone.0208480 . ISSN   1932-6203. PMC   6469754 . PMID   30995236.
  48. ↑ Evans, David C.; Schott, Ryan K.; Larson, Derek W.; Brown, Caleb M.; Ryan, Michael J. (2013). "The oldest North American pachycephalosaurid and the hidden diversity of small-bodied ornithischian dinosaurs". Nature Communications. 4 (1): 1828. Bibcode:2013NatCo...4.1828E. doi: 10.1038/ncomms2749 . ISSN   2041-1723. PMID   23652016.
  49. ↑ Schott, Ryan K.; Evans, David C. (2016). "Cranial variation and systematics of Foraminacephale brevis gen. nov. and the diversity of pachycephalosaurid dinosaurs (Ornithischia: Cerapoda) in the Belly River Group of Alberta, Canada". Zoological Journal of the Linnean Society. doi:10.1111/zoj.12465.
  50. ↑ Evans, David C.; Larson, Derek W.; Currie, Philip J. (2013). "A new dromaeosaurid (Dinosauria: Theropoda) with Asian affinities from the latest Cretaceous of North America". Naturwissenschaften. 100 (11): 1041–1049. Bibcode:2013NW....100.1041E. doi:10.1007/s00114-013-1107-5. ISSN   0028-1042. PMID   24248432. S2CID   14978813.
  51. ↑ Evans, David C.; Cullen, Thomas M.; Larson, Derek W.; Rego, Adam (2017). "A new species of troodontid theropod (Dinosauria: Maniraptora) from the Horseshoe Canyon Formation (Maastrichtian) of Alberta, Canada". Canadian Journal of Earth Sciences. 54 (8): 813–826. Bibcode:2017CaJES..54..813E. doi:10.1139/cjes-2017-0034. ISSN   0008-4077.
  52. ↑ Evans, David C.; Brown, Caleb M.; You, Hailu; Campione, Nicolás E. (2021). "Description and revised diagnosis of Asia's first recorded pachycephalosaurid, Sinocephale bexelli gen. nov., from the Upper Cretaceous of Inner Mongolia, China". Canadian Journal of Earth Sciences. 58 (10): 981–992. Bibcode:2021CaJES..58..981E. doi:10.1139/cjes-2020-0190. ISSN   0008-4077. S2CID   244227050.
  53. ↑ Mann, Arjan; Rudkin, David; Evans, David C.; Laflamme, Marc (2017). "A large onychodontiform (Osteichthyes: Sarcopterygii) apex predator from the Eifelian-aged Dundee Formation of Ontario, Canada". Canadian Journal of Earth Sciences. 54 (3): 233–241. Bibcode:2017CaJES..54..233M. doi:10.1139/cjes-2016-0119. hdl: 1807/75619 . ISSN   0008-4077.
  54. ↑ Modesto, Sean P.; Scott, Diane M.; MacDougall, Mark J.; Sues, Hans-Dieter; Evans, David C.; Reisz, Robert R. (2015-02-22). "The oldest parareptile and the early diversification of reptiles". Proceedings of the Royal Society B: Biological Sciences. 282 (1801): 20141912. doi:10.1098/rspb.2014.1912. ISSN   0962-8452. PMC   4308993 . PMID   25589601.
  55. ↑ Larson, Derek W.; Longrich, Nicholas R.; Evans, David C.; Ryan, Michael J. (2013), Brinkman, Donald B.; Holroyd, Patricia A.; Gardner, James D. (eds.), "A New Species of Neurankylus from the Milk River Formation (Cretaceous: Santonian) of Alberta, Canada, and a Revision of the Type Species N. Eximius", Morphology and Evolution of Turtles, Vertebrate Paleobiology and Paleoanthropology, Springer Netherlands, pp. 389–405, doi:10.1007/978-94-007-4309-0_21, ISBN   978-94-007-4308-3
  56. ↑ "Editorial Board". www.facetsjournal.com. Retrieved 2020-01-21.
  57. ↑ "Editorial board | Biology Letters". royalsocietypublishing.org. Retrieved 2020-01-21.
  58. ↑ Tucker, Rebecca (2015-01-29). "Dino Hunt Canada shows off our nation's long history of prehistoric beast discovery". National Post. Retrieved 2020-01-21.
  59. ↑ "About the Ultimate Dinos". Royal Ontario Museum. Retrieved 2020-01-21.
  60. ↑ "James and Louise Temerty Galleries of the Age of Dinosaurs". Royal Ontario Museum. Retrieved 2020-01-21.
  61. ↑ "Dinosaur Eggs and Babies: Remarkable Fossils from South Africa". Royal Ontario Museum. Retrieved 2020-01-21.
  62. ↑ "Zuul: Life of an Armoured Dinosaur". Royal Ontario Museum. Retrieved 2020-01-21.
This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.