Zuoyunlong: Difference between revisions
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'''''Zuoyunlong''''' is an extinct [[genus]] of herbivorous [[ornithischian]] dinosaur belonging to the [[Hadrosauroidea]], that lived during the [[Late Cretaceous]] in the area of present [[China]].<ref>{{Cite journal|last=Wang|first=Run-Fu|last2=You|first2=Hai-Lu|last3=Wang|first3=Suo-Zhu|last4=Xu|first4=Shi-Chao|last5=Yi|first5=Jian|last6=Xie|first6=Li-Juan|last7=Jia|first7=Lei|last8=Xing|first8=Hai|date=2017-01-02|title=A second hadrosauroid dinosaur from the early Late Cretaceous of Zuoyun, Shanxi Province, China|journal=Historical Biology|language=en|volume=29|issue=1|pages=17–24|doi=10.1080/08912963.2015.1118688|issn=0891-2963}}</ref> |
'''''Zuoyunlong''''' is an extinct [[genus]] of herbivorous [[ornithischian]] dinosaur belonging to the [[Hadrosauroidea]], that lived during the [[Late Cretaceous]] in the area of present [[China]].<ref>{{Cite journal|last=Wang|first=Run-Fu|last2=You|first2=Hai-Lu|last3=Wang|first3=Suo-Zhu|last4=Xu|first4=Shi-Chao|last5=Yi|first5=Jian|last6=Xie|first6=Li-Juan|last7=Jia|first7=Lei|last8=Xing|first8=Hai|date=2017-01-02|title=A second hadrosauroid dinosaur from the early Late Cretaceous of Zuoyun, Shanxi Province, China|journal=Historical Biology|language=en|volume=29|issue=1|pages=17–24|doi=10.1080/08912963.2015.1118688|issn=0891-2963}}</ref> |
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| ⚫ | In 2015 the [[type species]] |
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==Discovery and naming== |
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The [[holotype]], SXMG V 00 004, was found by the team of the Shanxi Regional Geological Survey in a layer of the [[Zhumapu Formation]] in the province of [[Shanxi]] which dates from the [[Cenomanian]], roughly ninety-five million years old. It consists of two bones from the right-hand half of the pelvis, a partial right ilium with the field number ZY004-001 to which the cover sheet is missing, and the lower end of the shaft of the right ischium, field number ZY004-002. Additional specimens are unassigned.<ref name = Wang/> |
The [[holotype]], SXMG V 00 004, was found by the team of the Shanxi Regional Geological Survey in a layer of the [[Zhumapu Formation]] in the province of [[Shanxi]] which dates from the [[Cenomanian]], roughly ninety-five million years old. It consists of two bones from the right-hand half of the pelvis, a partial right ilium with the field number ZY004-001 to which the cover sheet is missing, and the lower end of the shaft of the right ischium, field number ZY004-002. Additional specimens are unassigned.<ref name = Wang/> |
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| ⚫ | In 2015 the [[type species]] ''Zuoyunlong huangi'' was named and described by Wang Runfu, You Hailu, Wang Suozhu, Shichao Xu, Yi Jian, Xie Lijuan, Jia and Lei Xing Hai. The generic name refers to the prefecture of [[Zuoyun]] with the [[Chinese language|Chinese]] word ''long'', "dragon". The specific name honors the Chinese paleontologist Huang Weilong.<ref name="Wang">{{cite journal|author=Run-Fu Wang, Hai-Lu You, Suo-Zhu Wang, Shi-Chao Xu, Jian Yi, Li-Juan Xie, Lei Jia and Hai Xing|year=2016|title=A second hadrosauroid dinosaur from the early Late Cretaceous of Zuoyun, Shanxi Province, China|journal=Historical Biology: An International Journal of Paleobiology|volume=in press|pages=17–24|doi=10.1080/08912963.2015.1118688}}</ref> |
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==Decsription== |
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The descriptors established a unique feature derived, or [[autapomorphy]] for this taxon: the back sheet of the ilium has only half the length of the main body. The ilium has a preserved length of sixty-two centimeter indicating a body length of about eight meters. The shaft of the buttock ends in a side view in large "foot" the tip of which points obliquely downwards and forwards. The shaft is much higher than transverse width.<ref name = Wang/> |
The descriptors established a unique feature derived, or [[autapomorphy]] for this taxon: the back sheet of the ilium has only half the length of the main body. The ilium has a preserved length of sixty-two centimeter indicating a body length of about eight meters. The shaft of the buttock ends in a side view in large "foot" the tip of which points obliquely downwards and forwards. The shaft is much higher than transverse width.<ref name = Wang/> |
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==Classification== |
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A [[cladistic analysis]] found that ''Zuoyunlong'' had a [[Basal (phylogenetics)|basal]] position in the [[Hadrosauroidea]], as sister taxon of ''[[Probactrosaurus]]''. ''Zuoyulong'' was thus in 2015 the most basal hadrosauroid known from the Upper Cretaceous. As the oldest known hadrosauroid outside Asia, ''[[Eolambia]]'' and ''[[Protohadros]]'' from North America, also date from the Cenomanian, the descriptors considered that is likely that ''Zuoyunlong'' was close to the separation between the Asian and North American hadrosauroids.<ref name = Wang/> |
A [[cladistic analysis]] found that ''Zuoyunlong'' had a [[Basal (phylogenetics)|basal]] position in the [[Hadrosauroidea]], as sister taxon of ''[[Probactrosaurus]]''. ''Zuoyulong'' was thus in 2015 the most basal hadrosauroid known from the Upper Cretaceous. As the oldest known hadrosauroid outside Asia, ''[[Eolambia]]'' and ''[[Protohadros]]'' from North America, also date from the Cenomanian, the descriptors considered that is likely that ''Zuoyunlong'' was close to the separation between the Asian and North American hadrosauroids.<ref name = Wang/> |
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Revision as of 11:18, 3 June 2020
| Zuoyunlong Temporal range: Late Cretaceous,
| |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Dinosauria |
| Clade: | †Ornithischia |
| Clade: | †Neornithischia |
| Clade: | †Ornithopoda |
| Superfamily: | †Hadrosauroidea |
| Genus: | †Zuoyunlong Wang et al., 2015 |
| Type species | |
| Zuoyunlong huangi Wang et al., 2015
| |
Zuoyunlong is an extinct genus of herbivorous ornithischian dinosaur belonging to the Hadrosauroidea, that lived during the Late Cretaceous in the area of present China.[1]
Discovery and naming
The holotype, SXMG V 00 004, was found by the team of the Shanxi Regional Geological Survey in a layer of the Zhumapu Formation in the province of Shanxi which dates from the Cenomanian, roughly ninety-five million years old. It consists of two bones from the right-hand half of the pelvis, a partial right ilium with the field number ZY004-001 to which the cover sheet is missing, and the lower end of the shaft of the right ischium, field number ZY004-002. Additional specimens are unassigned.[2]
In 2015 the type species Zuoyunlong huangi was named and described by Wang Runfu, You Hailu, Wang Suozhu, Shichao Xu, Yi Jian, Xie Lijuan, Jia and Lei Xing Hai. The generic name refers to the prefecture of Zuoyun with the Chinese word long, "dragon". The specific name honors the Chinese paleontologist Huang Weilong.[2]
Decsription
The descriptors established a unique feature derived, or autapomorphy for this taxon: the back sheet of the ilium has only half the length of the main body. The ilium has a preserved length of sixty-two centimeter indicating a body length of about eight meters. The shaft of the buttock ends in a side view in large "foot" the tip of which points obliquely downwards and forwards. The shaft is much higher than transverse width.[2]
Classification
A cladistic analysis found that Zuoyunlong had a basal position in the Hadrosauroidea, as sister taxon of Probactrosaurus. Zuoyulong was thus in 2015 the most basal hadrosauroid known from the Upper Cretaceous. As the oldest known hadrosauroid outside Asia, Eolambia and Protohadros from North America, also date from the Cenomanian, the descriptors considered that is likely that Zuoyunlong was close to the separation between the Asian and North American hadrosauroids.[2]
See also
References
- ^ Wang, Run-Fu; You, Hai-Lu; Wang, Suo-Zhu; Xu, Shi-Chao; Yi, Jian; Xie, Li-Juan; Jia, Lei; Xing, Hai (2017-01-02). "A second hadrosauroid dinosaur from the early Late Cretaceous of Zuoyun, Shanxi Province, China". Historical Biology. 29 (1): 17–24. doi:10.1080/08912963.2015.1118688. ISSN 0891-2963.
- ^ a b c d Run-Fu Wang, Hai-Lu You, Suo-Zhu Wang, Shi-Chao Xu, Jian Yi, Li-Juan Xie, Lei Jia and Hai Xing (2016). "A second hadrosauroid dinosaur from the early Late Cretaceous of Zuoyun, Shanxi Province, China". Historical Biology: An International Journal of Paleobiology. in press: 17–24. doi:10.1080/08912963.2015.1118688.
{{cite journal}}: CS1 maint: multiple names: authors list (link)
