Pectinodon: Difference between revisions
revert, for now. http://dml.cmnh.org/2006Sep/msg00088.html "Pectinodon is a junior synonym of Troodon" as of September '06 |
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{{Italic title}}{{automatic taxobox |
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#redirect [[Troodon]] |
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| name = ''Pectinodon'' |
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| fossil_range = [[Late Cretaceous]], {{Fossil range|66}} |
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| image = |
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| image_caption = |
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| parent_authority = [[Kenneth Carpenter|Carpenter]], 1982 |
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| authority = [[Joseph Leidy|Leidy]], 1856 |
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| type_species = '''''Pectinodon bakkeri''''' |
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| type_species_authority = Carpenter, 1982 |
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| subdivision_ranks = [[Species]] |
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| subdivision = |
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* '''''P. bakkeri''''' <small>Carpenter, 1982</small> |
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| synonyms = |
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* '''''[[Troodon]] bakkeri''''' <small>(Carpenter, 1982)</small> |
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}} |
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'''''Pectinodon''''' is a [[genus]] of [[dinosaur]]s from the [[Late Cretaceous]] [[Period (geology)|period]] (66 [[mya (unit)|mya]]). It currently contains a single [[species]], '''Pectinodon bakkeri''' (sometimes classified as ''[[Troodon]] bakkeri''), known only from teeth. |
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While historically considered synonymous with ''Troodon'' or more specifically the species ''[[Troodon formosus]]'', Currie and colleagues (1990) noted that the ''P. bakkeri'' fossils from the [[Hell Creek Formation]] and [[Lance Formation]] might belong to different species. In 1991, George Olshevsky assigned the Lance formation fossils to the species ''Troodon bakkeri''.<ref name=currie2005>Currie, P. (2005). "Theropods, including birds." in Currie and Koppelhus (eds). ''Dinosaur Provincial Park, a spectacular ecosystem revealed, Part Two, Flora and Fauna from the park.'' Indiana University Press, Bloomington. Pp 367–397.</ref> In 2011, Zanno and colleagues reviewed the convoluted history of troodontid classification in Late Cretaceous North America. They followed Longrich (2008) in treating ''Pectinodon bakkeri'' as a valid genus, and noted that it is likely the numerous Late Cretaceous specimens currently assigned to ''Troodon formosus'' almost certainly represent numerous new species, but that a more thorough review of the specimens is required. Because the holotype of ''T. formosus'' is a single tooth, this may render ''Troodon'' a [[nomen dubium]].<ref name=Talos>{{Cite journal|author=Lindsay E. Zanno, David J. Varricchio, Patrick M. O'Connor, Alan L. Titus and Michael J. Knell |year=2011 |title=A new troodontid theropod, ''Talos sampsoni'' gen. et sp. nov., from the Upper Cretaceous Western Interior Basin of North America |url= |journal=PLoS ONE |volume= |issue= |pages= |doi=10.1371/journal.pone.0024487 }}</ref> |
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==References==<!-- Cretaceous Research (2002) 23, 297–305 --> |
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{{Reflist|2}} |
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[[Category:Cretaceous dinosaurs]] |
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[[Category:Dinosaurs of North America]] |
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[[Category:Troodontids]] |
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Revision as of 22:36, 9 November 2012
| Pectinodon Temporal range: Late Cretaceous,
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Dinosauria |
| Clade: | Saurischia |
| Clade: | Theropoda |
| Family: | †Troodontidae Carpenter, 1982 |
| Genus: | †Pectinodon Leidy, 1856 |
| Type species | |
| Pectinodon bakkeri Carpenter, 1982
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| Species | |
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| Synonyms | |
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Pectinodon is a genus of dinosaurs from the Late Cretaceous period (66 mya). It currently contains a single species, Pectinodon bakkeri (sometimes classified as Troodon bakkeri), known only from teeth.
While historically considered synonymous with Troodon or more specifically the species Troodon formosus, Currie and colleagues (1990) noted that the P. bakkeri fossils from the Hell Creek Formation and Lance Formation might belong to different species. In 1991, George Olshevsky assigned the Lance formation fossils to the species Troodon bakkeri.[1] In 2011, Zanno and colleagues reviewed the convoluted history of troodontid classification in Late Cretaceous North America. They followed Longrich (2008) in treating Pectinodon bakkeri as a valid genus, and noted that it is likely the numerous Late Cretaceous specimens currently assigned to Troodon formosus almost certainly represent numerous new species, but that a more thorough review of the specimens is required. Because the holotype of T. formosus is a single tooth, this may render Troodon a nomen dubium.[2]
References
- ^ Currie, P. (2005). "Theropods, including birds." in Currie and Koppelhus (eds). Dinosaur Provincial Park, a spectacular ecosystem revealed, Part Two, Flora and Fauna from the park. Indiana University Press, Bloomington. Pp 367–397.
- ^ Lindsay E. Zanno, David J. Varricchio, Patrick M. O'Connor, Alan L. Titus and Michael J. Knell (2011). "A new troodontid theropod, Talos sampsoni gen. et sp. nov., from the Upper Cretaceous Western Interior Basin of North America". PLoS ONE. doi:10.1371/journal.pone.0024487.
{{cite journal}}: CS1 maint: multiple names: authors list (link) CS1 maint: unflagged free DOI (link)