Gualicho: Difference between revisions
No edit summary |
mNo edit summary |
||
| Line 9: | Line 9: | ||
| type_species = {{extinct}}'''''Gualicho shinyae''''' |
| type_species = {{extinct}}'''''Gualicho shinyae''''' |
||
| type_species_authority = Apesteguía, 2016 |
| type_species_authority = Apesteguía, 2016 |
||
| synonyms = ''Nototyrannus |
| synonyms = ''Nototyrannus''<br /> |
||
<small>Anonymous, 2011 (''[[nomen nudum]]'')</small><ref name="Apesteguía2016"/> |
<small>Anonymous, 2011 (''[[nomen nudum]]'')</small><ref name="Apesteguía2016"/> |
||
''Aoniraptor''<br /> |
|||
<small>Mott et al, 2016</small> |
|||
}} |
}} |
||
'''''Gualicho''''' (named in reference to the [[gualichu]]) is a [[genus]] of [[Theropoda|theropod]] [[dinosaur]]. The [[type species]] is '''''Gualicho shinyae'''''. ''Gualicho'' lived in what is now northern [[Patagonia]], on what was then a South American island continent split off from the [[supercontinent]] [[Gondwana]]. The fossils were found in the [[Huincul Formation]], dating to the late [[Cenomanian]]-early [[Turonian]] age of the upper [[Cretaceous]] [[Period (geology)|Period]], around 93 [[mya (unit)|million years ago]]. Like the well-known ''[[Tyrannosaurus]]'', to which it has been compared, the {{convert|6-7|m|ft|abbr=on}} ''Gualicho'' possesses reduced arms and two fingered hands. This finding indicates that carnosaurs were subject to the same evolution of limb-reduction as [[tyrannosaurid]]s and [[abelisaurid]]s.<ref>{{cite web|url=https://www.theguardian.com/science/2016/jul/13/meet-gualicho-shinyae-the-puny-armed-distant-relative-of-t-rex|last=Davis|first=Nicola|publisher=The Guardian|title=Meet Gualico shinyae, the puny armed distant relative of T-rex|date=13 July 2016|accessdate=13 July 2016}}</ref> |
'''''Gualicho''''' (named in reference to the [[gualichu]]) is a [[genus]] of [[Theropoda|theropod]] [[dinosaur]]. The [[type species]] is '''''Gualicho shinyae'''''. ''Gualicho'' lived in what is now northern [[Patagonia]], on what was then a South American island continent split off from the [[supercontinent]] [[Gondwana]]. The fossils were found in the [[Huincul Formation]], dating to the late [[Cenomanian]]-early [[Turonian]] age of the upper [[Cretaceous]] [[Period (geology)|Period]], around 93 [[mya (unit)|million years ago]]. Like the well-known ''[[Tyrannosaurus]]'', to which it has been compared, the {{convert|6-7|m|ft|abbr=on}} ''Gualicho'' possesses reduced arms and two fingered hands. This finding indicates that carnosaurs were subject to the same evolution of limb-reduction as [[tyrannosaurid]]s and [[abelisaurid]]s.<ref>{{cite web|url=https://www.theguardian.com/science/2016/jul/13/meet-gualicho-shinyae-the-puny-armed-distant-relative-of-t-rex|last=Davis|first=Nicola|publisher=The Guardian|title=Meet Gualico shinyae, the puny armed distant relative of T-rex|date=13 July 2016|accessdate=13 July 2016}}</ref> |
||
''Gualicho'' has been suggested to be [[Synonym (taxonomy)|synonymous]] with the megaraptoran ''[[Aoniraptor]]'', also known from Huincul Formation and uncovered at the Violante site in view of similarities in their caudal vertebrae.<ref>{{cite web|last1=Mortimer|first1=Mickey|title=Is Gualicho Aoniraptor?|url=http://theropoddatabase.blogspot.com/2016/07/is-gualicho-aoniraptor.html|website=The Theropod Database Blog|accessdate=14 July 2016}}</ref><ref>{{cite web|last1=Cau|first1=Andrea|title=Nuovi resti di Aoniraptor? Ehm... Benvenuto Gualicho!|url=http://theropoda.blogspot.com/2016/07/nuovi-resti-di-aoniraptor-ehm-benvenuto.html|website=Theropoda|accessdate=14 July 2016}}</ref> |
''Gualicho'' has been suggested to be [[Synonym (taxonomy)|synonymous]] with the megaraptoran ''[[Aoniraptor]]'', also known from Huincul Formation and uncovered at the Violante site in view of similarities in their caudal vertebrae.<ref>{{cite web|last1=Mortimer|first1=Mickey|title=Is Gualicho Aoniraptor?|url=http://theropoddatabase.blogspot.com/2016/07/is-gualicho-aoniraptor.html|website=The Theropod Database Blog|accessdate=14 July 2016}}</ref><ref>{{cite web|last1=Cau|first1=Andrea|title=Nuovi resti di Aoniraptor? Ehm... Benvenuto Gualicho!|url=http://theropoda.blogspot.com/2016/07/nuovi-resti-di-aoniraptor-ehm-benvenuto.html|website=Theropoda|accessdate=14 July 2016}}</ref> However, as ''Aoniraptor'' does not meet the requirement of [[International Code of Zoological Nomenclature|ICZN]] Article 8.5.3, meaning that it is probably a [[Synonym (taxonomy)|junior synonym]] of ''[[Gualicho]]''.<ref>https://theropoddatabase.blogspot.ca/2016/07/is-gualicho-aoniraptor.html?showComment=1468647938176#c9198204326213191587</ref> |
||
[[File:Gualicho fingers.PNG|upright|thumb|left|Digits of the left hand]] |
[[File:Gualicho fingers.PNG|upright|thumb|left|Digits of the left hand]] |
||
On 13 February 2007, Akiko Shinya, preparator of the [[Field Museum of Natural History]], east of the Ezequiel Ramos Mexía Reservoir at the Rancho Violante, discovered the skeleton of a theropod new to science. In 2016, the specimen was named and described by [[Sebastián Apesteguía]], Nathan D. Smith, [[Rubén Juárez Valieri]] and Peter J. Makovicky. The generic name is derived from the ''gualichu'', a demon of local folklore. The [[specific name (zoology)|specific name]] honours Shinya as the animal's discoverer.<ref name="Apesteguía2016"/> |
On 13 February 2007, Akiko Shinya, preparator of the [[Field Museum of Natural History]], east of the Ezequiel Ramos Mexía Reservoir at the Rancho Violante, discovered the skeleton of a theropod new to science. In 2016, the specimen was named and described by [[Sebastián Apesteguía]], Nathan D. Smith, [[Rubén Juárez Valieri]] and Peter J. Makovicky. The generic name is derived from the ''gualichu'', a demon of local folklore. The [[specific name (zoology)|specific name]] honours Shinya as the animal's discoverer.<ref name="Apesteguía2016"/> |
||
Revision as of 20:36, 19 July 2016
| Gualicho Temporal range: Late Cretaceous,
| |
|---|---|
| |
| Skeletal reconstruction, with known elements in white | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Dinosauria |
| Clade: | Saurischia |
| Clade: | Theropoda |
| Clade: | Neotheropoda |
| Clade: | Averostra |
| Genus: | †Gualicho |
| Type species | |
| †Gualicho shinyae Apesteguía, 2016
| |
| Synonyms | |
|
Nototyrannus Aoniraptor | |
Gualicho (named in reference to the gualichu) is a genus of theropod dinosaur. The type species is Gualicho shinyae. Gualicho lived in what is now northern Patagonia, on what was then a South American island continent split off from the supercontinent Gondwana. The fossils were found in the Huincul Formation, dating to the late Cenomanian-early Turonian age of the upper Cretaceous Period, around 93 million years ago. Like the well-known Tyrannosaurus, to which it has been compared, the 6–7 m (20–23 ft) Gualicho possesses reduced arms and two fingered hands. This finding indicates that carnosaurs were subject to the same evolution of limb-reduction as tyrannosaurids and abelisaurids.[2]
Gualicho has been suggested to be synonymous with the megaraptoran Aoniraptor, also known from Huincul Formation and uncovered at the Violante site in view of similarities in their caudal vertebrae.[3][4] However, as Aoniraptor does not meet the requirement of ICZN Article 8.5.3, meaning that it is probably a junior synonym of Gualicho.[5]
On 13 February 2007, Akiko Shinya, preparator of the Field Museum of Natural History, east of the Ezequiel Ramos Mexía Reservoir at the Rancho Violante, discovered the skeleton of a theropod new to science. In 2016, the specimen was named and described by Sebastián Apesteguía, Nathan D. Smith, Rubén Juárez Valieri and Peter J. Makovicky. The generic name is derived from the gualichu, a demon of local folklore. The specific name honours Shinya as the animal's discoverer.[1]
The holotype, MPCN PV 0001, consists of a partial skeleton lacking the skull. It contains four vertebrae of the back, three vertebrae of the middle tail, ribs, a basket of belly-ribs, the left shoulder girdle, the left forelimb, the right lower arm, the lower ends of both pubic bones, the right thighbone, the lower end of the left thighbone, the upper ends of the right shinbone and calf bone, elements of both metatarsi and three toes of the right foot. Most bones were uncovered in their original anatomical position but much of the skeleton had been destroyed by erosion.[1]
Phylogenetically, Gualicho presents two possibilities; that megaraptorans and neovenatorids were carnosaurs, or that megaraptorans and neovenatorids were a grade of theropods more closely related to coelurosaurs than to carnosaurs.[1]
References
- ^ a b c d Sebastián Apesteguía; Nathan D. Smith; Rubén Juárez Valieri; Peter J. Makovicky (2016). "An Unusual New Theropod with a Didactyl Manus from the Upper Cretaceous of Patagonia, Argentina". PLoS ONE. 11 (7): e0157793. doi:10.1371/journal.pone.0157793.
{{cite journal}}: CS1 maint: unflagged free DOI (link) - ^ Davis, Nicola (13 July 2016). "Meet Gualico shinyae, the puny armed distant relative of T-rex". The Guardian. Retrieved 13 July 2016.
- ^ Mortimer, Mickey. "Is Gualicho Aoniraptor?". The Theropod Database Blog. Retrieved 14 July 2016.
- ^ Cau, Andrea. "Nuovi resti di Aoniraptor? Ehm... Benvenuto Gualicho!". Theropoda. Retrieved 14 July 2016.
- ^ https://theropoddatabase.blogspot.ca/2016/07/is-gualicho-aoniraptor.html?showComment=1468647938176#c9198204326213191587
.jpg){kind=small}
.jpg)
.png){kind=small}
.jpg){kind=small}
