Scolosaurus: Difference between revisions
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In 1971, [[Walter Coombs]] concluded that there was only one species of ankylosaurid during the [[Campanian]] age of the Late Cretaceous of North America. He synonymised the species ''[[Anodontosaurus lambei]]'', ''[[Dyoplosaurus acutosquameus]]'', and ''Scolosaurus cutleri'' with ''[[Euoplocephalus tutus]]''.<ref name=Coombs1971>Coombs W. (1971) The Ankylosauridae. Ph.D. thesis, Columbia University, New York, NY, 487 p.</ref> The synonymisation of ''Scolosaurus cutleri'' and ''Euoplocephalus tutus'' was generally accepted and thus NHMUK R.5161 was assigned to ''E. tutus''. However, a redescription of ''Scolosaurus'' published in 2013 in the ''[[Canadian Journal of Earth Sciences]]'' by [[Paul Penkalski]] and [[William T. Blows]] suggested that the genus is a valid taxon. They concluded that ''Scolosaurus'' can be distinguished from ''Euoplocephalus'' by the [[morphology (biology)|form]] of their [[neck|cervical]] armor, details of other [[osteoderm|armour]], and the structure of the forelimb. They also found that ''Scolosaurus'' and ''Dyoplosaurus'' are distinct, due to differences in the [[pelvis]] and armour.<ref name=ScolosaurusRev/> |
In 1971, [[Walter Coombs]] concluded that there was only one species of ankylosaurid during the [[Campanian]] age of the Late Cretaceous of North America. He synonymised the species ''[[Anodontosaurus lambei]]'', ''[[Dyoplosaurus acutosquameus]]'', and ''Scolosaurus cutleri'' with ''[[Euoplocephalus tutus]]''.<ref name=Coombs1971>Coombs W. (1971) The Ankylosauridae. Ph.D. thesis, Columbia University, New York, NY, 487 p.</ref> The synonymisation of ''Scolosaurus cutleri'' and ''Euoplocephalus tutus'' was generally accepted and thus NHMUK R.5161 was assigned to ''E. tutus''. However, a redescription of ''Scolosaurus'' published in 2013 in the ''[[Canadian Journal of Earth Sciences]]'' by [[Paul Penkalski]] and [[William T. Blows]] suggested that the genus is a valid taxon. They concluded that ''Scolosaurus'' can be distinguished from ''Euoplocephalus'' by the [[morphology (biology)|form]] of their [[neck|cervical]] armor, details of other [[osteoderm|armour]], and the structure of the forelimb. They also found that ''Scolosaurus'' and ''Dyoplosaurus'' are distinct, due to differences in the [[pelvis]] and armour.<ref name=ScolosaurusRev/> |
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A 2013 study found ''[[Oohkotokia]]'' to be indistinguishable from ''[[Scolosaurus]]'', and therefore a [[junior synonym]].<ref>{{Cite doi|10.1371/journal.pone.0062421}}</ref> |
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==References== |
==References== |
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Revision as of 01:57, 9 May 2013
| Scolosaurus Temporal range: Late Cretaceous,
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| Type specimen at Natural History Museum, London | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Dinosauria |
| Clade: | †Ornithischia |
| Clade: | †Thyreophora |
| Clade: | †Ankylosauria |
| Family: | †Ankylosauridae |
| Subfamily: | †Ankylosaurinae |
| Tribe: | †Ankylosaurini |
| Genus: | †Scolosaurus Nopcsa, 1928 |
| Type species | |
| †Scolosaurus cutleri Nopcsa, 1928
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Scolosaurus is an extinct genus of ankylosaurid dinosaurs within the subfamily Ankylosaurinae. It is known from the lower levels of the Late Cretaceous Dinosaur Park Formation (latest middle Campanian stage, about 76.5 Ma ago) of Alberta, Canada. It contains a single species, Scolosaurus cutleri.[1]
Scolosaurus was named by Franz Nopcsa von Felső-Szilvás in 1928, based on holotype NHMUK R.5161, a partial postcranial skeleton. The skeleton was collected by William E. Cutler in 1914 from Royal Tyrrell Museum of Palaeontology Quarry 80 at Deadlodge Canyon.[2][1] It was collected from the bottom of the Dinosaur Park Formation or possibly even from the uppermost layers of the underlying Oldman Formation, making it the oldest described North American ankylosaurid.[3] The generic name is derived from skolios, "bent/crooked", and sauros, "lizard" in Ancient Greek.[4] The specific name, cutleri, honours its discoverer and the collector of the holotype, W. E. Cutler,[2] who was seriously injured when the specimen fell on him as he was excavating it.[5]
In 1971, Walter Coombs concluded that there was only one species of ankylosaurid during the Campanian age of the Late Cretaceous of North America. He synonymised the species Anodontosaurus lambei, Dyoplosaurus acutosquameus, and Scolosaurus cutleri with Euoplocephalus tutus.[6] The synonymisation of Scolosaurus cutleri and Euoplocephalus tutus was generally accepted and thus NHMUK R.5161 was assigned to E. tutus. However, a redescription of Scolosaurus published in 2013 in the Canadian Journal of Earth Sciences by Paul Penkalski and William T. Blows suggested that the genus is a valid taxon. They concluded that Scolosaurus can be distinguished from Euoplocephalus by the form of their cervical armor, details of other armour, and the structure of the forelimb. They also found that Scolosaurus and Dyoplosaurus are distinct, due to differences in the pelvis and armour.[1]
A 2013 study found Oohkotokia to be indistinguishable from Scolosaurus, and therefore a junior synonym.[7]
References
- ^ a b c Attention: This template ({{cite doi}}) is deprecated. To cite the publication identified by doi:10.1139/cjes-2012-0098, please use {{cite journal}} (if it was published in a bona fide academic journal, otherwise {{cite report}} with
|doi=10.1139/cjes-2012-0098instead. - ^ a b B. F. Nopcsa (1928) "Palaeontological notes on reptiles. V. On the skull of the Upper Cretaceous dinosaur Euoplocephalus." Geologica Hungarica, Series Palaeontologica 1(1):1-84
- ^ Attention: This template ({{cite doi}}) is deprecated. To cite the publication identified by doi:10.4202/app.2012.0125, please use {{cite journal}} (if it was published in a bona fide academic journal, otherwise {{cite report}} with
|doi=10.4202/app.2012.0125instead. - ^ Liddell, Henry George and Robert Scott (1980). A Greek-English Lexicon (Abridged Edition). United Kingdom: Oxford University Press. pp. 630, 640. ISBN 0-19-910207-4.
- ^ Tanke, Darren H. (2010.). "Lost in plain sight: Rediscovery of William E. Cutler's lost Eoceratops". In M.J. Ryan, B.J. Chinnery-Allgeier, D.A. Eberth (ed.). New perspectives on horned dinosaurs: The Royal Tyrrell Museum ceratopsian symposium. Bloomington: Indiana University Press. pp. 541–50. ISBN 978-0-253-35358-0.
{{cite book}}: Check date values in:|year=(help)CS1 maint: multiple names: editors list (link) - ^ Coombs W. (1971) The Ankylosauridae. Ph.D. thesis, Columbia University, New York, NY, 487 p.
- ^ Attention: This template ({{cite doi}}) is deprecated. To cite the publication identified by doi:10.1371/journal.pone.0062421, please use {{cite journal}} (if it was published in a bona fide academic journal, otherwise {{cite report}} with
|doi=10.1371/journal.pone.0062421instead.
