| 词条 | Regaliceratops |
| 释义 |
| fossil_range = Late Cretaceous, {{fossil range|68.5|67.5}} | image = Regaliceratops skull at Royal Tyrrell Museum.jpg | image_caption = Skull of Regaliceratops on display at the Royal Tyrrell Museum, Canada | taxon = Regaliceratops | authority = Brown & Henderson, 2015 | type_species = {{extinct}}Regaliceratops peterhewsi | type_species_authority = Brown & Henderson, 2015 }}Regaliceratops is a genus of herbivorous ceratopsid dinosaur that lived during the late Cretaceous period, about 68 million years ago in what is now Alberta, Canada.[1][2] DiscoveryClosely related to Triceratops, Regaliceratops was named for its plated frill, which its describers thought looked somewhat like a crown. In 2005, geologist Peter Hews discovered a skull at the Oldman River in Alberta. The fossil was secured by a team of the Royal Tyrrell Museum. The specimen was given the nickname "Hellboy" for its horns and the difficulty of removing it from the matrix.[3] In 2015, Caleb Marshall Brown and Donald Henderson named and described the type species Regaliceratops peterhewsi. The generic name combines Latin regalis, "royal", a reference to both the crown-shaped neck shield and the "Royal" Tyrrell, with a Greek keras, "horn", and ops, "face". The specific name honours Hews.[1] The holotype, TMP 2005.055.0001, was found in a layer of the St. Mary River Formation dating from the middle Maastrichtian, about 68 million years old. It consists of a rather complete skull of which the snout bone, the rostrum, is lacking. The skull has been deformed by compression and its rear and underside are obscured by the matrix.[1] Regaliceratops was about five metres long, with an estimated weight of 1.5 tonnes.[4]SystematicsRegaliceratops was resolved as a member of the Triceratopsini by Brown and Henderson (2015).[5][6] However, in 2016 a study by Mallon et al. did not resolve Regaliceratops as a triceratopsin.[7]PhylogenyPhylogeny of Brown & Henderson, 2015.[8][9] {{clade| style=font-size:100%; line-height:100%|label1=Triceratopsini |1={{clade |1=Regaliceratops peterhewsi |2=Eotriceratops xerinsularis |3=Ojoceratops fowleri |4={{clade |1=Titanoceratops ouranos |2={{clade |1=Nedoceratops hatcheri |2={{clade |1={{clade |1=Torosaurus latus |2=Torosaurus utahensis }} |2={{clade |1=Triceratops horridus |2=Triceratops prorsus }} }} }} }} }} }} Phylogeny of Mallon et al., 2016.[10] {{Clade|1=Anchiceratops ornatus |2=Regaliceratops peterhewsi |3={{clade |1=Arrhinoceratops brachyops |2={{clade |label1=Triceratopsini |1={{clade |1={{clade |1=Ojoceratops fowleri |2=Titanoceratops ouranos |3=Nedoceratops hatcheri |4=Torosaurus latus |5="Torosaurus" utahensis |6={{clade |1=Triceratops prorsus |2=Triceratops horridus }} }} }} }} }} }} See also
References1. ^1 2 {{cite journal|last1=Brown|first1=Caleb M.|last2=Henderson|first2=Donald M.|title=A new horned dinosaur reveals convergent evolution in cranial ornamentation in ceratopsidae|journal=Current Biology|date=June 4, 2015|issue=online|url=http://www.cell.com/current-biology/pdfExtended/S0960-9822(15)00492-3|doi=10.1016/j.cub.2015.04.041|pmid=26051892|volume=25|pages=1641–8}} {{Marginocephalia|T.}}2. ^{{Cite web|title = New species of horned dinosaur with 'bizarre' features revealed|url = http://phys.org/news/2015-06-species-horned-dinosaur-bizarre-features.html|accessdate = 2015-06-05}} 3. ^{{cite news| url= http://www.3news.co.nz/world/hellboy-dinosaur-rewrites-the-prehistory-book-2015060412#axzz3c7OMlBb9| work=3 News |title= 'Hellboy' dinosaur rewrites the prehistory book | date=5 June 2015}} 4. ^Will Dunham, 2015, "Meet 'Hellboy,' the dinosaur with exotic horns and frill", Reuters 04 June 2015 5. ^{{cite journal|last1=Brown|first1=Caleb M.|last2=Henderson|first2=Donald M.|title=A new horned dinosaur reveals convergent evolution in cranial ornamentation in ceratopsidae|journal=Current Biology|date=June 4, 2015|issue=online|url=http://www.cell.com/current-biology/pdfExtended/S0960-9822(15)00492-3|doi=10.1016/j.cub.2015.04.041|pmid=26051892|volume=25|pages=1641–8}} 6. ^{{Cite web|title = New species of horned dinosaur with 'bizarre' features revealed|url = http://phys.org/news/2015-06-species-horned-dinosaur-bizarre-features.html|accessdate = 2015-06-05}} 7. ^{{cite journal |authors=Jordan C. Mallon, Christopher J. Ott, Peter L. Larson, Edward M. Iuliano and David C. Evans |year=2016 |title=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 |journal=PLoS ONE |volume=11 |issue=5 |pages=e0154218 |doi=10.1371/journal.pone.0154218 |pmid=27191389 |pmc=4871577}} 8. ^{{cite journal|last1=Brown|first1=Caleb M.|last2=Henderson|first2=Donald M.|title=A new horned dinosaur reveals convergent evolution in cranial ornamentation in ceratopsidae|journal=Current Biology|date=June 4, 2015|issue=online|url=http://www.cell.com/current-biology/pdfExtended/S0960-9822(15)00492-3|doi=10.1016/j.cub.2015.04.041|pmid=26051892|volume=25|pages=1641–8}} 9. ^{{Cite web|title = New species of horned dinosaur with 'bizarre' features revealed|url = http://phys.org/news/2015-06-species-horned-dinosaur-bizarre-features.html|accessdate = 2015-06-05}} 10. ^{{cite journal |authors=Jordan C. Mallon, Christopher J. Ott, Peter L. Larson, Edward M. Iuliano and David C. Evans |year=2016 |title=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 |journal=PLoS ONE |volume=11 |issue=5 |pages=e0154218 |doi=10.1371/journal.pone.0154218 |pmid=27191389 |pmc=4871577}} 6 : Chasmosaurines|Late Cretaceous dinosaurs of North America|Fossil taxa described in 2015|Paleontology in Alberta|Maastrichtian genus first appearances|Maastrichtian genus extinctions |
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