Sinankylosaurus: Difference between revisions
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'''''Sinankylosaurus''''' (meaning "Chinese fused lizard") is a [[genus]] of |
'''''Sinankylosaurus''''' (meaning "Chinese fused lizard") is a [[genus]] of [[dinosaur]], originally described as an ankylosaur, from the [[Late Cretaceous]] [[Hongtuya Formation]] of [[Shandong|Shandong, China]]. The genus contains a single species, '''''Sinankylosaurus zhuchengensis''''', known from a nearly complete right [[Ilium (bone)|ilium]]. The describers claim that the discovery of ''Sinankylosaurus'' further demonstrates the similarity between dinosaurs of [[East Asia|eastern Asia]] and [[western North America]].<ref name="Wang2020">{{cite journal|last1=Wang|first1=K. B.|last2=Zhang|first2=Y. X.|last3=Chen|first3=J.|last4=Chen|first4=S. Q.|last5=Wang|first5=P. Y.|year=2020|title=A new ankylosaurian from the Late Cretaceous strata of Zhucheng, Shandong Province|url=http://dzhtb.cgs.cn/gbcen/ch/reader/create_pdf.aspx?file_no=20200703&flag=1&year_id=2020&quarter_id=7|journal=Geological Bulletin of China|language=Chinese|volume=39|issue=7|pages=958–962}}</ref> |
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==Discovery and naming== |
==Discovery and naming== |
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Beginning in 1964, paleontologists conducted large-scale excavations in [[Zhucheng]] and discovered an abundant source of fossils; notably dinosaur fossils.<ref>[https://paleobiodb.org/classic/displayStrata?geological_group=Wangshi&group_formation_member=Wangshi Wangshi Group] in the [[Paleobiology Database]]</ref> |
Beginning in 1964, paleontologists conducted large-scale excavations in [[Zhucheng]] and discovered an abundant source of fossils; notably dinosaur fossils.<ref>[https://paleobiodb.org/classic/displayStrata?geological_group=Wangshi&group_formation_member=Wangshi Wangshi Group] in the [[Paleobiology Database]]</ref> |
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'''ZJZ-183''', the [[holotype]] specimen, was discovered with the ''[[Zhuchengtyrannus]]'' holotype in the [[Late Cretaceous|Upper Cretaceous]] [[Wangshi Group]] (specifically the [[Hongtuya Formation]]<ref name="Wang2020"/>) in Zhucheng, [[Shandong|Shandong Province, China]] around 2010.<ref>{{cite web|title=Shandong discovers new dinosaur with spikes!|date=20 August 2020|url=http://www.yqqlm.com/2020/08/shandong-discovers-new-dinosaur-with-spikes/|publisher=yqqlm|access-date=21 August 2020}}{{Dead link|date=January 2024}}</ref> The fossil was prepared during the following years and was later described in 2020.<ref name=Wang2020 /> |
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==Description== |
==Description== |
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Because it is only known from an ilium, the external appearance of ''Sinankylosaurus'' remains unknown. Its describers noted similarities with other ankylosaur ilia, but a 2021 study did not consider it an ankylosaur and called it a ''nomen dubium''.<ref>{{Cite journal|author=Wenjie Zheng |author2=Masateru Shibata |author3=Chun-Chi Lao |author4=Soki Hattori |author5=Dongchun Jin |author6=Changzhu Jin |author7=Xing Xu |title=First definitive ankylosaurian dinosaur from the Cretaceous of Jilin Province, northeastern China|journal=Cretaceous Research|year=2021 |volume=127|issue=104953|page=104953 |doi=10.1016/j.cretres.2021.104953}}</ref> |
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''Sinankylosaurus'', based on the contemporary relative ''[[Pinacosaurus]]'', would have grown to around {{convert|5|m|ft}} long and would have weighed no heavier than {{convert|2|tonnes|lb}}.<ref name=Wang2020 /><ref>{{cite book|author=Gregory S. Paul|url=https://archive.org/details/princetonfieldgu0000paul|title=The Princeton Field Guide to Dinosaurs|publisher=Princeton University Press|year=2010|isbn=9780691137209|place=United States of America|url-access=registration}}</ref> |
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==Paleoecology== |
==Paleoecology== |
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''Sinankylosaurus'' is known from the |
''Sinankylosaurus'' is known from the Hongtuya Formation, part of the Wangshi Group of southern China. Other animals from this group include ''[[Sinoceratops]]'', a [[ceratopsian]],<ref name=xu2010>{{Cite journal|author=Xu, X., Wang, K., Zhao, X. & Li, D.|year=2010|title=First ceratopsid dinosaur from China and its biogeographical implications|journal=Chinese Science Bulletin|volume=55|issue=16|pages=1631–1635|doi=10.1007/s11434-009-3614-5|bibcode=2010ChSBu..55.1631X|s2cid=128972108}}</ref> ''[[Shantungosaurus]]'', a very common hadrosaurid to which most of the material has been assigned,<ref name="hu1973">{{cite journal|author=Hu, C.C.|year=1973|title=[A new hadrosaur from the Cretaceous of Chucheng, Shantung]|journal=Acta Geologica Sinica|volume=2|pages=179–206}}</ref> ''[[Zhuchengtyrannus]]'', an Asian tyrannosaurid related to ''[[Tarbosaurus]]'',<ref name="Zhuchengtyrannus">{{cite journal|last1=Hone|first1=D. W. E.|last2=Wang|first2=K.|last3=Sullivan|first3=C.|last4=Zhao|first4=X.|last5=Chen|first5=S.|last6=Li|first6=D.|last7=Ji|first7=S.|last8=Ji|first8=Q.|last9=Xu|first9=X.|date=2011|title=A new, large tyrannosaurine theropod from the Upper Cretaceous of China|journal=Cretaceous Research|volume=32|issue=4|pages=495–503|doi=10.1016/j.cretres.2011.03.005}}</ref> ''[[Zhuchengceratops]]'', an Asian [[Leptoceratopsidae|leptoceratopsid]],<ref name="zhuchengceratops">{{Cite journal|author1=Xing Xu |author2=Kebai Wang |author3=Xijin Zhao |author4=Corwin Sullivan |author5=Shuqing Chen |year=2010 |title=A New Leptoceratopsid (Ornithischia: Ceratopsia) from the Upper Cretaceous of Shandong, China and Its Implications for Neoceratopsian Evolution |journal=PLOS ONE |volume=5 |issue=11 |pages=e13835 |doi=10.1371/journal.pone.0013835 |pmid=21079798 |pmc=2973951|bibcode=2010PLoSO...513835X |doi-access=free }}</ref> and material tentatively assigned to ''[[Tyrannosaurus]]''. |
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== References == |
== References == |
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[[Category:Paleontology in Shandong]] |
[[Category:Paleontology in Shandong]] |
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[[Category:Fossil taxa described in 2020]] |
[[Category:Fossil taxa described in 2020]] |
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[[Category:Ornithischian genera]] |
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Latest revision as of 10:45, 10 April 2024
| Sinankylosaurus Temporal range: Late Cretaceous
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Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Dinosauria |
| Genus: | †Sinankylosaurus Wang et al., 2020 |
| Species: | †S. zhuchengensis
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| Binomial name | |
| †Sinankylosaurus zhuchengensis Wang et al., 2020
| |
Sinankylosaurus (meaning "Chinese fused lizard") is a genus of dinosaur, originally described as an ankylosaur, from the Late Cretaceous Hongtuya Formation of Shandong, China. The genus contains a single species, Sinankylosaurus zhuchengensis, known from a nearly complete right ilium. The describers claim that the discovery of Sinankylosaurus further demonstrates the similarity between dinosaurs of eastern Asia and western North America.[1]
Discovery and naming
[edit]Beginning in 1964, paleontologists conducted large-scale excavations in Zhucheng and discovered an abundant source of fossils; notably dinosaur fossils.[2]
ZJZ-183, the holotype specimen, was discovered with the Zhuchengtyrannus holotype in the Upper Cretaceous Wangshi Group (specifically the Hongtuya Formation[1]) in Zhucheng, Shandong Province, China around 2010.[3] The fossil was prepared during the following years and was later described in 2020.[1]
Description
[edit]Because it is only known from an ilium, the external appearance of Sinankylosaurus remains unknown. Its describers noted similarities with other ankylosaur ilia, but a 2021 study did not consider it an ankylosaur and called it a nomen dubium.[4]
Paleoecology
[edit]Sinankylosaurus is known from the Hongtuya Formation, part of the Wangshi Group of southern China. Other animals from this group include Sinoceratops, a ceratopsian,[5] Shantungosaurus, a very common hadrosaurid to which most of the material has been assigned,[6] Zhuchengtyrannus, an Asian tyrannosaurid related to Tarbosaurus,[7] Zhuchengceratops, an Asian leptoceratopsid,[8] and material tentatively assigned to Tyrannosaurus.
References
[edit]- ^ a b c Wang, K. B.; Zhang, Y. X.; Chen, J.; Chen, S. Q.; Wang, P. Y. (2020). "A new ankylosaurian from the Late Cretaceous strata of Zhucheng, Shandong Province". Geological Bulletin of China (in Chinese). 39 (7): 958–962.
- ^ Wangshi Group in the Paleobiology Database
- ^ "Shandong discovers new dinosaur with spikes!". yqqlm. 20 August 2020. Retrieved 21 August 2020.[dead link]
- ^ Wenjie Zheng; Masateru Shibata; Chun-Chi Lao; Soki Hattori; Dongchun Jin; Changzhu Jin; Xing Xu (2021). "First definitive ankylosaurian dinosaur from the Cretaceous of Jilin Province, northeastern China". Cretaceous Research. 127 (104953): 104953. doi:10.1016/j.cretres.2021.104953.
- ^ Xu, X., Wang, K., Zhao, X. & Li, D. (2010). "First ceratopsid dinosaur from China and its biogeographical implications". Chinese Science Bulletin. 55 (16): 1631–1635. Bibcode:2010ChSBu..55.1631X. doi:10.1007/s11434-009-3614-5. S2CID 128972108.
{{cite journal}}: CS1 maint: multiple names: authors list (link) - ^ Hu, C.C. (1973). "[A new hadrosaur from the Cretaceous of Chucheng, Shantung]". Acta Geologica Sinica. 2: 179–206.
- ^ Hone, D. W. E.; Wang, K.; Sullivan, C.; Zhao, X.; Chen, S.; Li, D.; Ji, S.; Ji, Q.; Xu, X. (2011). "A new, large tyrannosaurine theropod from the Upper Cretaceous of China". Cretaceous Research. 32 (4): 495–503. doi:10.1016/j.cretres.2011.03.005.
- ^ Xing Xu; Kebai Wang; Xijin Zhao; Corwin Sullivan; Shuqing Chen (2010). "A New Leptoceratopsid (Ornithischia: Ceratopsia) from the Upper Cretaceous of Shandong, China and Its Implications for Neoceratopsian Evolution". PLOS ONE. 5 (11): e13835. Bibcode:2010PLoSO...513835X. doi:10.1371/journal.pone.0013835. PMC 2973951. PMID 21079798.
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