Zhongyuansaurus - Revision history

45.234.81.76: /* Discovery and naming */Added image

2025-05-25T16:29:08Z

Discovery and naming: Added image

← Previous revision		Revision as of 16:29, 25 May 2025
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	In a 2015 publication, [[Victoria Arbour]] and [[Phillip J. Currie]] determined that ''Zhongyuansaurus'' may be a [[junior synonym]] of ''[[Gobisaurus domoculus]]'', as they recognized all the diagnosable characteristics of ''Gobisaurus'' in the ''Zhongyuansaurus'' holotype, except where these could not be assessed due to damage.<ref name="Arbour2015">{{Cite journal \|last1=Arbour \|first1=Victoria M. \|last2=Currie \|first2=Philip J. \|date=2015-07-28 \|title=Systematics, phylogeny and palaeobiogeography of the ankylosaurid dinosaurs \|journal=Journal of Systematic Palaeontology \|language=en \|volume=14 \|issue=5 \|pages=385–444 \|doi=10.1080/14772019.2015.1059985 \|issn=1477-2019}}</ref>		In a 2015 publication, [[Victoria Arbour]] and [[Phillip J. Currie]] determined that ''Zhongyuansaurus'' may be a [[junior synonym]] of ''[[Gobisaurus domoculus]]'', as they recognized all the diagnosable characteristics of ''Gobisaurus'' in the ''Zhongyuansaurus'' holotype, except where these could not be assessed due to damage.<ref name="Arbour2015">{{Cite journal \|last1=Arbour \|first1=Victoria M. \|last2=Currie \|first2=Philip J. \|date=2015-07-28 \|title=Systematics, phylogeny and palaeobiogeography of the ankylosaurid dinosaurs \|journal=Journal of Systematic Palaeontology \|language=en \|volume=14 \|issue=5 \|pages=385–444 \|doi=10.1080/14772019.2015.1059985 \|issn=1477-2019}}</ref>

			[[File:Zhongyuansaurus junchangi.png\|thumb\|Life reconstruction of ''Z. junchangi'']]
	In 2025, Zhang et al. described ''Zhongyuansaurus junchangi'' as a new species in the genus based on the holotype, 41HIII0708, which comprises a right mandible, 14 free caudal verterbae and seven fused caudal vertebrae forming the club 'handle', ten [[haemal arch]]es, four ribs, the left humerus, one metatarsal, and 41 osteoderms. The specific name, ''junchangi'', honors Chinese paleontologist [[Lü Junchang]] and his work in Henan. They noted several characteristics that could be used to distinguish ''Zhongyuansaurus'' from other Asian ankylosaurids, including ''Gobisaurus'' and ''[[Shamosaurus]]'' (an ankylosaurid similar to ''Gobisaurus''). The specimen was found in the same rock layers as ''Z. luoyangensis''.<ref name="Z.junchangi">{{Cite journal \|last1=Zhang \|first1=Ji-ming \|last2=Jia \|first2=Lei \|last3=Xu \|first3=Li \|last4=You \|first4=Hai-lu \|last5=Gao \|first5=Dian-song \|last6=Liu \|first6=Di \|last7=Li \|first7=Yu \|last8=Wang \|first8=Yan-chao \|date=March 2025 \|title=河南汝阳盆地早白垩世甲龙科化石新材料 \|trans-title=New ankylosaurid material from the Lower Cretaceous of the Ruyang Basin, Henan Province \|url=http://gswxb.cnjournals.cn/gswxb/article/abstract/20250104 \|journal=Acta Palaeontologica Sinica \|language=zh \|issue=1 \|pages=60–73 \|doi=10.19800/j.cnki.aps.2024037 \|doi-access=free}}</ref>		In 2025, Zhang et al. described ''Zhongyuansaurus junchangi'' as a new species in the genus based on the holotype, 41HIII0708, which comprises a right mandible, 14 free caudal verterbae and seven fused caudal vertebrae forming the club 'handle', ten [[haemal arch]]es, four ribs, the left humerus, one metatarsal, and 41 osteoderms. The specific name, ''junchangi'', honors Chinese paleontologist [[Lü Junchang]] and his work in Henan. They noted several characteristics that could be used to distinguish ''Zhongyuansaurus'' from other Asian ankylosaurids, including ''Gobisaurus'' and ''[[Shamosaurus]]'' (an ankylosaurid similar to ''Gobisaurus''). The specimen was found in the same rock layers as ''Z. luoyangensis''.<ref name="Z.junchangi">{{Cite journal \|last1=Zhang \|first1=Ji-ming \|last2=Jia \|first2=Lei \|last3=Xu \|first3=Li \|last4=You \|first4=Hai-lu \|last5=Gao \|first5=Dian-song \|last6=Liu \|first6=Di \|last7=Li \|first7=Yu \|last8=Wang \|first8=Yan-chao \|date=March 2025 \|title=河南汝阳盆地早白垩世甲龙科化石新材料 \|trans-title=New ankylosaurid material from the Lower Cretaceous of the Ruyang Basin, Henan Province \|url=http://gswxb.cnjournals.cn/gswxb/article/abstract/20250104 \|journal=Acta Palaeontologica Sinica \|language=zh \|issue=1 \|pages=60–73 \|doi=10.19800/j.cnki.aps.2024037 \|doi-access=free}}</ref>

OAbot: Open access bot: url-access updated in citation with #oabot.

2025-05-24T12:24:03Z

Open access bot: url-access updated in citation with #oabot.

← Previous revision		Revision as of 12:24, 24 May 2025
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	==Paleoenvironment==		==Paleoenvironment==
	''Zhongyuansaurus'' was recovered from the [[Haoling Formation]], which possibly dates to the [[Aptian]] and [[Albian]] stages of the [[Early Cretaceous]].<ref name=XLetal07/> ''Zhongyuansaurus'' would have shared its habitat with the [[oviraptoridae\|oviraptorid]] ''[[Luoyanggia]]'',<ref name=Lu2009/> the [[sauropoda\|sauropods]] ''[[Xianshanosaurus]]'',<ref name=Lu2009>{{cite journal \| last1 = Lü \| first1 = J. \| last2 = Xu \| first2 = L. \| last3 = Jiang \| first3 = X. \| last4 = Jia \| first4 = S. \| last5 = Li \| first5 = M. \| last6 = Yuan \| first6 = C. \| last7 = Zhang \| first7 = X. \| last8 = Ji \| first8 = Q. \| year = 2009 \| title = A preliminary report on the new dinosaurian fauna from the Cretaceous of the Ruyang Basin, Henan Province of central China \| url = http://www.reportshop.co.kr/kstudy/2785/D2784271.html \| journal = Journal of the Paleontological Society of Korea \| volume = 25 \| pages = 43–56 }}</ref> ''[[Yunmenglong]]'',<ref name=Yunmenglong>{{Cite journal \| last1 = Lü \| first1 = J. \| last2 = Xu \| first2 = L. \| last3 = Pu \| first3 = H. \| last4 = Zhang \| first4 = X. \| last5 = Zhang \| first5 = Y. \| last6 = Jia \| first6 = S. \| last7 = Chang \| first7 = H. \| last8 = Zhang \| first8 = J. \| last9 = Wei \| first9 = X. \| title = A new sauropod dinosaur (Dinosauria, Sauropoda) from the late Early Cretaceous of the Ruyang Basin (central China) \| doi = 10.1016/j.cretres.2013.04.009 \| journal = Cretaceous Research \| volume = 44 \| pages = 202–213 \| year = 2013 \| bibcode = 2013CrRes..44..202L }}</ref> ''[[Ruyangosaurus]]''<ref name="luetal">{{cite journal \| last1 = Lü \| first1 = J \| last2 = Xu \| first2 = L \| last3 = Jia \| first3 = S \| last4 = Zhang \| first4 = X \| last5 = Zhang \| first5 = J \| last6 = Yang \| first6 = L \| last7 = You \| first7 = H \| last8 = Ji \| first8 = Q \| year = 2009 \| title = A new gigantic sauropod dinosaur from the Cretaceous of Ruyang, Henan, China \| journal = Geological Bulletin of China \| volume = 28 \| issue = 1\| pages = 1–10 }}</ref> and ''[[Huanghetitan]]'',<ref name="luetal2007">{{cite journal\|author=Lu J., Xu\|author2=L., Zhang\|author3=X., Hu\|author4=W., Wu\|author5=Y., Jia, S.\|author6=Ji, Q.\|name-list-style=amp \|title=A New Gigantic Sauropod Dinosaur with the Deepest Known Body Cavity from the Cretaceous of Asia\|journal=Acta Geologica Sinica \|volume=81\|issue=2\|pages=167\|doi=10.1111/j.1755-6724.2007.tb00941.x\|year=2007\|bibcode=2007AcGlS..81..167L \|s2cid=128462121 }}</ref> an indeterminate [[ornithomimidae\|ornithomimid]],<ref>A preliminary report on the new dinosaurian fauna from the Cretaceous of the Ruyang Basin, Henan Province of central China. J Paleontol Soc Kor. 25(1):43–56.</ref> an indeterminate [[iguanodontia\|iguanodontian]],<ref>Zhang YY, Lu¨ JC, Pu HY, Xu L, Shang YH, Jia SH, Zhang JM. 2013. The discovery of iguanodontid dinosaur from the late Early Cretaceous strata of Ruyang Basin, Henan and its stratigraphic significance. Geol Bull China. 32(9):1344– 1348.</ref> and an indeterminate [[carcharodontosauria\|carcharodontosaurian]].<ref>{{Cite journal\|last1=Lü\|first1=Junchang\|last2=Xu\|first2=Li\|last3=Pu\|first3=Hanyong\|last4=Jia\|first4=Songhai\|last5=Azuma\|first5=Yoichi\|last6=Chang\|first6=Huali\|last7=Zhang\|first7=Jiming\|date=2016-02-17\|title=Paleogeographical significance of carcharodontosaurid teeth from the late Early Cretaceous of Ruyang, Henan Province of central China\|url=http://www.tandfonline.com/doi/full/10.1080/08912963.2014.947287\|journal=Historical Biology\|language=en\|volume=28\|issue=1–2\|pages=8–13\|doi=10.1080/08912963.2014.947287\|bibcode=2016HBio...28....8L \|s2cid=53410808\|issn=0891-2963}}</ref>		''Zhongyuansaurus'' was recovered from the [[Haoling Formation]], which possibly dates to the [[Aptian]] and [[Albian]] stages of the [[Early Cretaceous]].<ref name=XLetal07/> ''Zhongyuansaurus'' would have shared its habitat with the [[oviraptoridae\|oviraptorid]] ''[[Luoyanggia]]'',<ref name=Lu2009/> the [[sauropoda\|sauropods]] ''[[Xianshanosaurus]]'',<ref name=Lu2009>{{cite journal \| last1 = Lü \| first1 = J. \| last2 = Xu \| first2 = L. \| last3 = Jiang \| first3 = X. \| last4 = Jia \| first4 = S. \| last5 = Li \| first5 = M. \| last6 = Yuan \| first6 = C. \| last7 = Zhang \| first7 = X. \| last8 = Ji \| first8 = Q. \| year = 2009 \| title = A preliminary report on the new dinosaurian fauna from the Cretaceous of the Ruyang Basin, Henan Province of central China \| url = http://www.reportshop.co.kr/kstudy/2785/D2784271.html \| journal = Journal of the Paleontological Society of Korea \| volume = 25 \| pages = 43–56 }}</ref> ''[[Yunmenglong]]'',<ref name=Yunmenglong>{{Cite journal \| last1 = Lü \| first1 = J. \| last2 = Xu \| first2 = L. \| last3 = Pu \| first3 = H. \| last4 = Zhang \| first4 = X. \| last5 = Zhang \| first5 = Y. \| last6 = Jia \| first6 = S. \| last7 = Chang \| first7 = H. \| last8 = Zhang \| first8 = J. \| last9 = Wei \| first9 = X. \| title = A new sauropod dinosaur (Dinosauria, Sauropoda) from the late Early Cretaceous of the Ruyang Basin (central China) \| doi = 10.1016/j.cretres.2013.04.009 \| journal = Cretaceous Research \| volume = 44 \| pages = 202–213 \| year = 2013 \| bibcode = 2013CrRes..44..202L }}</ref> ''[[Ruyangosaurus]]''<ref name="luetal">{{cite journal \| last1 = Lü \| first1 = J \| last2 = Xu \| first2 = L \| last3 = Jia \| first3 = S \| last4 = Zhang \| first4 = X \| last5 = Zhang \| first5 = J \| last6 = Yang \| first6 = L \| last7 = You \| first7 = H \| last8 = Ji \| first8 = Q \| year = 2009 \| title = A new gigantic sauropod dinosaur from the Cretaceous of Ruyang, Henan, China \| journal = Geological Bulletin of China \| volume = 28 \| issue = 1\| pages = 1–10 }}</ref> and ''[[Huanghetitan]]'',<ref name="luetal2007">{{cite journal\|author=Lu J., Xu\|author2=L., Zhang\|author3=X., Hu\|author4=W., Wu\|author5=Y., Jia, S.\|author6=Ji, Q.\|name-list-style=amp \|title=A New Gigantic Sauropod Dinosaur with the Deepest Known Body Cavity from the Cretaceous of Asia\|journal=Acta Geologica Sinica \|volume=81\|issue=2\|pages=167\|doi=10.1111/j.1755-6724.2007.tb00941.x\|year=2007\|bibcode=2007AcGlS..81..167L \|s2cid=128462121 }}</ref> an indeterminate [[ornithomimidae\|ornithomimid]],<ref>A preliminary report on the new dinosaurian fauna from the Cretaceous of the Ruyang Basin, Henan Province of central China. J Paleontol Soc Kor. 25(1):43–56.</ref> an indeterminate [[iguanodontia\|iguanodontian]],<ref>Zhang YY, Lu¨ JC, Pu HY, Xu L, Shang YH, Jia SH, Zhang JM. 2013. The discovery of iguanodontid dinosaur from the late Early Cretaceous strata of Ruyang Basin, Henan and its stratigraphic significance. Geol Bull China. 32(9):1344– 1348.</ref> and an indeterminate [[carcharodontosauria\|carcharodontosaurian]].<ref>{{Cite journal\|last1=Lü\|first1=Junchang\|last2=Xu\|first2=Li\|last3=Pu\|first3=Hanyong\|last4=Jia\|first4=Songhai\|last5=Azuma\|first5=Yoichi\|last6=Chang\|first6=Huali\|last7=Zhang\|first7=Jiming\|date=2016-02-17\|title=Paleogeographical significance of carcharodontosaurid teeth from the late Early Cretaceous of Ruyang, Henan Province of central China\|url=http://www.tandfonline.com/doi/full/10.1080/08912963.2014.947287\|journal=Historical Biology\|language=en\|volume=28\|issue=1–2\|pages=8–13\|doi=10.1080/08912963.2014.947287\|bibcode=2016HBio...28....8L \|s2cid=53410808\|issn=0891-2963\|url-access=subscription}}</ref>

	==See also==		==See also==

45.234.81.79: Some slight corrections

2025-05-22T17:05:23Z

Some slight corrections

← Previous revision		Revision as of 17:05, 22 May 2025
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	}}		}}

	'''''Zhongyuansaurus''''' (meaning "Zhongyuan lizard") is an extinct genus of [[ankylosaurid]] dinosaurs known from the [[Early Cretaceous]] [[Haoling Formation]] of what is now Henan Province, China. The genus contains two species, '''''Z. luoyangensis''''', named in 2007 and '''''Z. junchangi''''', named in 2025, both known from a single partial skeleton. ''Zhongyuansaurus'' is similar to ''[[Gobisaurus]]'', prompting some ~~reserachers~~ ~~two~~ regard the genera as [[Synonym (taxonomy)\|synonymous]].		'''''Zhongyuansaurus''''' (meaning "Zhongyuan lizard") is an extinct genus of [[ankylosaurid]] dinosaurs known from the [[Early Cretaceous]] [[Haoling Formation]] of what is now Henan Province, China. The genus contains two species, '''''Z. luoyangensis''''', named in 2007, and '''''Z. junchangi''''', named in 2025, both known from a single partial skeleton. ''Zhongyuansaurus'' is similar to ''[[Gobisaurus]]'', prompting some researchers to regard the genera as [[Synonym (taxonomy)\|synonymous]].

	==Discovery and naming==		==Discovery and naming==

SlvrHwk: Other updates for clarity + Z. junchangi

2025-05-21T21:27:47Z

Other updates for clarity + Z. junchangi

Show changes

SlvrHwk: New species

2025-05-21T19:40:50Z

New species

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	{{short description\|Extinct genus of dinosaurs}}		{{short description\|Extinct genus of ankylosaurid dinosaurs}}
			{{Automatic taxobox
	{{Speciesbox
	\| fossil_range = [[Early Cretaceous]], ~~<br>~~{{fossilrange\|~~125.0~~\|~~100.5~~}}		\| fossil_range = [[Early Cretaceous]], {{fossilrange\|Albian\|Albian\|?[[Albian]]}}
	\| image = Zhongyuansaurus luoyangensis skull.jpg		\| image = Zhongyuansaurus luoyangensis skull.jpg
	\| image_caption = ~~Skull~~		\| image_caption = Holotype skull of ''Z. luoyangensis''
		⚫	\| taxon = Zhongyuansaurus
	\| display_parents = 3		\| display_parents=2
⚫	\| ~~genus~~ = Zhongyuansaurus
	\| ~~parent_authority~~ = Xu ''et al.'', [[2007 in paleontology\|2007]]		\| authority = Xu et al., [[2007 in paleontology\|2007]]
	\| ~~species~~ = luoyangensis		\| type_species = {{extinct}}'''''Zhongyuansaurus luoyangensis'''''
	\| ~~authority~~ = Xu ''et al.'', 2007		\| type_species_authority = Xu et al., 2007
			\| subdivision_ranks = Other [[species]]
			\| subdivision = * {{extinct}}'''''Zhongyuansaurus junchangi''''' {{small\|Zhang et al., [[2025 in archosaur paleontology\|2025]]}}
	}}		}}


			'''''Zhongyuansaurus''''' (meaning “Zhongyuan lizard”) is an extint genus of [[ankylosaurid]] dinosaurs known from the [[Early Cretaceous]] [[Haoling Formation]] of what is now Henan Province, China. The genus contains two species, '''''Z. luoyangensis''''', named in 2007 and '''''Z. junchangi''''', named in 2025, both known from a single partial skeleton.<ref>{{Cite journal \|last1=Zhang \|first1=Ji-ming \|last2=Jia \|first2=Lei \|last3=Xu \|first3=Li \|last4=You \|first4=Hai-lu \|last5=Gao \|first5=Dian-song \|last6=Liu \|first6=Di \|last7=Li \|first7=Yu \|last8=Wang \|first8=Yan-chao \|date=March 2025 \|title=河南汝阳盆地早白垩世甲龙科化石新材料 \|trans-title=New ankylosaurid material from the Lower Cretaceous of the Ruyang Basin, Henan Province \|url=http://gswxb.cnjournals.cn/gswxb/article/abstract/20250104 \|journal=Acta Palaeontologica Sinica \|language=zh \|issue=1 \|pages=60–73 \|doi=10.19800/j.cnki.aps.2024037 \|doi-access=free}}</ref>
	'''''Zhongyuansaurus''''' (meaning “Zhongyuan lizard”) is a monospecific genus of [[ankylosauridae\|ankylosaurid]] [[dinosaur]] from Henan that lived during the [[Early Cretaceous]] ([[Aptian]]-[[Albian]], ~125.0-100.5 Ma) in what is now the [[Haoling Formation]]. ''Zhongyuansaurus '' is possibly a junior synonym of ''[[Gobisaurus]]'', a basal [[ankylosauridae\|ankylosaurid]] from the [[Ulansuhai Formation]] of [[Inner Mongolia]].

	==Discovery and naming==		==Discovery and naming==

JJMC89 bot III: Moving :Category:Ankylosaurines to :Category:Ankylosaurinae per Wikipedia:Categories for discussion/Speedy

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Moving Category:Ankylosaurines to Category:Ankylosaurinae per Wikipedia:Categories for discussion/Speedy

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IJReid: − 5 categories; + 6 categories using HotCat

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− 5 categories; + 6 categories using HotCat

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			[[Category:Albian dinosaurs]]
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	[[Category:Fossil taxa described in 2007]]		[[Category:Fossil taxa described in 2007]]
⚫	[[Category:~~Paleontology~~ in ~~Henan~~]]
	[[Category:Taxa named by Lü Junchang]]		[[Category:Taxa named by Lü Junchang]]
	[[Category:Ornithischian genera]]

JJMC89 bot III: Moving :Category:Ankylosaurinae to :Category:Ankylosaurines per Wikipedia:Categories for discussion/Speedy

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Dimadick: /* References */

2024-12-31T14:34:16Z

References

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	[[Category:Fossil taxa described in 2007]]		[[Category:Fossil taxa described in 2007]]

Citation bot: Added bibcode. | Use this bot. Report bugs. | Suggested by Abductive | Category:Ornithischian genera | #UCB_Category 272/448

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Added bibcode. | Use this bot. Report bugs. | Suggested by Abductive | Category:Ornithischian genera | #UCB_Category 272/448

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	==Classification==		==Classification==
	Xu et al., 2007 originally considered ''Zhongyuansaurus'' to be a nodosaurid ankylosaur based on the skull proportions and the absence of a tail club.<ref name=XLetal07/> However, longer-than-wide skulls are a pleiomorphic trait of [[Ankylosauria]] and not a derived condition of nodosaurids.<ref name="Arbour2014"/> Carpenter et al., 2008 re-evaluated ''Zhongyuansaurus'' to the clade [[Ankylosauridae\|Shamosaurinae]] based on similarities with ''[[Shamosaurus]]''.<ref name=KCetal08>{{cite journal\|last=Carpenter\|first=Kenneth \|author-link=Kenneth Carpenter \|author2=Bartlett, Jeff \|author3=Bird, John \|author4= Barrick, Reese \|year=2008\|title=Ankylosaurs from the Price River Quarries, Cedar Mountain Formation (Lower Cretaceous), east-central Utah \|journal=Journal of Vertebrate Paleontology \|volume=28 \|issue=4 \|pages=1089–1101\|doi=10.1671/0272-4634-28.4.1089\|s2cid=129480044 }}</ref> Thompson et al., 2012 recovered ''Zhongyuansaurus'' as a basal [[ankylosaurinae\|ankylosaurine]]<ref name=ThompsonEtAl>{{Cite journal\|author=Richard S. Thompson\|author2=Jolyon C. Parish\|author3=Susannah C. R. Maidment\|author4=Paul M. Barrett\|year=2012\|title=Phylogeny of the ankylosaurian dinosaurs (Ornithischia: Thyreophora)\|journal=Journal of Systematic Palaeontology\|volume=10\|issue=2\|pages=301–312\|doi= 10.1080/14772019.2011.569091\|s2cid=86002282}}</ref> and Arbour & Currie, 2015 later concluded that ''Zhongyuansaurus'' was a probable junior synonym of ''[[Gobisaurus]]''.<ref name="Arbour2014"/>		Xu et al., 2007 originally considered ''Zhongyuansaurus'' to be a nodosaurid ankylosaur based on the skull proportions and the absence of a tail club.<ref name=XLetal07/> However, longer-than-wide skulls are a pleiomorphic trait of [[Ankylosauria]] and not a derived condition of nodosaurids.<ref name="Arbour2014"/> Carpenter et al., 2008 re-evaluated ''Zhongyuansaurus'' to the clade [[Ankylosauridae\|Shamosaurinae]] based on similarities with ''[[Shamosaurus]]''.<ref name=KCetal08>{{cite journal\|last=Carpenter\|first=Kenneth \|author-link=Kenneth Carpenter \|author2=Bartlett, Jeff \|author3=Bird, John \|author4= Barrick, Reese \|year=2008\|title=Ankylosaurs from the Price River Quarries, Cedar Mountain Formation (Lower Cretaceous), east-central Utah \|journal=Journal of Vertebrate Paleontology \|volume=28 \|issue=4 \|pages=1089–1101\|doi=10.1671/0272-4634-28.4.1089\|bibcode=2008JVPal..28.1089C \|s2cid=129480044 }}</ref> Thompson et al., 2012 recovered ''Zhongyuansaurus'' as a basal [[ankylosaurinae\|ankylosaurine]]<ref name=ThompsonEtAl>{{Cite journal\|author=Richard S. Thompson\|author2=Jolyon C. Parish\|author3=Susannah C. R. Maidment\|author4=Paul M. Barrett\|year=2012\|title=Phylogeny of the ankylosaurian dinosaurs (Ornithischia: Thyreophora)\|journal=Journal of Systematic Palaeontology\|volume=10\|issue=2\|pages=301–312\|doi= 10.1080/14772019.2011.569091\|bibcode=2012JSPal..10..301T \|s2cid=86002282}}</ref> and Arbour & Currie, 2015 later concluded that ''Zhongyuansaurus'' was a probable junior synonym of ''[[Gobisaurus]]''.<ref name="Arbour2014"/>

	A phylogenetic analysis conducted by Thompson et al., 2012 is reproduced below.<ref name=ThompsonEtAl/>		A phylogenetic analysis conducted by Thompson et al., 2012 is reproduced below.<ref name=ThompsonEtAl/>
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	==Paleoenvironment==		==Paleoenvironment==
	The holotype specimen of ''Zhongyuansaurus'' was recovered from the [[Haoling Formation]], which possibly dates to the [[Aptian]] and [[Albian]] stages of the [[Early Cretaceous]].<ref name=XLetal07/> ''Zhongyuansaurus'' would have shared its habitat with the [[oviraptoridae\|oviraptorid]] ''[[Luoyanggia]]'',<ref name=Lu2009/> the [[sauropoda\|sauropods]] ''[[Xianshanosaurus]]'',<ref name=Lu2009>{{cite journal \| last1 = Lü \| first1 = J. \| last2 = Xu \| first2 = L. \| last3 = Jiang \| first3 = X. \| last4 = Jia \| first4 = S. \| last5 = Li \| first5 = M. \| last6 = Yuan \| first6 = C. \| last7 = Zhang \| first7 = X. \| last8 = Ji \| first8 = Q. \| year = 2009 \| title = A preliminary report on the new dinosaurian fauna from the Cretaceous of the Ruyang Basin, Henan Province of central China \| url = http://www.reportshop.co.kr/kstudy/2785/D2784271.html \| journal = Journal of the Paleontological Society of Korea \| volume = 25 \| pages = 43–56 }}</ref> ''[[Yunmenglong]]'',<ref name=Yunmenglong>{{Cite journal \| last1 = Lü \| first1 = J. \| last2 = Xu \| first2 = L. \| last3 = Pu \| first3 = H. \| last4 = Zhang \| first4 = X. \| last5 = Zhang \| first5 = Y. \| last6 = Jia \| first6 = S. \| last7 = Chang \| first7 = H. \| last8 = Zhang \| first8 = J. \| last9 = Wei \| first9 = X. \| title = A new sauropod dinosaur (Dinosauria, Sauropoda) from the late Early Cretaceous of the Ruyang Basin (central China) \| doi = 10.1016/j.cretres.2013.04.009 \| journal = Cretaceous Research \| volume = 44 \| pages = 202–213 \| year = 2013 }}</ref> ''[[Ruyangosaurus]]''<ref name="luetal">{{cite journal \| last1 = Lü \| first1 = J \| last2 = Xu \| first2 = L \| last3 = Jia \| first3 = S \| last4 = Zhang \| first4 = X \| last5 = Zhang \| first5 = J \| last6 = Yang \| first6 = L \| last7 = You \| first7 = H \| last8 = Ji \| first8 = Q \| year = 2009 \| title = A new gigantic sauropod dinosaur from the Cretaceous of Ruyang, Henan, China \| journal = Geological Bulletin of China \| volume = 28 \| issue = 1\| pages = 1–10 }}</ref> and ''[[Huanghetitan]]'',<ref name="luetal2007">{{cite journal\|author=Lu J., Xu\|author2=L., Zhang\|author3=X., Hu\|author4=W., Wu\|author5=Y., Jia, S.\|author6=Ji, Q.\|name-list-style=amp \|title=A New Gigantic Sauropod Dinosaur with the Deepest Known Body Cavity from the Cretaceous of Asia\|journal=Acta Geologica Sinica \|volume=81\|issue=2\|pages=167\|doi=10.1111/j.1755-6724.2007.tb00941.x\|year=2007\|s2cid=128462121 }}</ref> an indeterminate [[ornithomimidae\|ornithomimid]],<ref>A preliminary report on the new dinosaurian fauna from the Cretaceous of the Ruyang Basin, Henan Province of central China. J Paleontol Soc Kor. 25(1):43–56.</ref> an indeterminate [[iguanodontia\|iguanodontian]],<ref>Zhang YY, Lu¨ JC, Pu HY, Xu L, Shang YH, Jia SH, Zhang JM. 2013. The discovery of iguanodontid dinosaur from the late Early Cretaceous strata of Ruyang Basin, Henan and its stratigraphic significance. Geol Bull China. 32(9):1344– 1348.</ref> and an indeterminate [[carcharodontosauria\|carcharodontosaurian]].<ref>{{Cite journal\|last1=Lü\|first1=Junchang\|last2=Xu\|first2=Li\|last3=Pu\|first3=Hanyong\|last4=Jia\|first4=Songhai\|last5=Azuma\|first5=Yoichi\|last6=Chang\|first6=Huali\|last7=Zhang\|first7=Jiming\|date=2016-02-17\|title=Paleogeographical significance of carcharodontosaurid teeth from the late Early Cretaceous of Ruyang, Henan Province of central China\|url=http://www.tandfonline.com/doi/full/10.1080/08912963.2014.947287\|journal=Historical Biology\|language=en\|volume=28\|issue=1–2\|pages=8–13\|doi=10.1080/08912963.2014.947287\|s2cid=53410808\|issn=0891-2963}}</ref>		The holotype specimen of ''Zhongyuansaurus'' was recovered from the [[Haoling Formation]], which possibly dates to the [[Aptian]] and [[Albian]] stages of the [[Early Cretaceous]].<ref name=XLetal07/> ''Zhongyuansaurus'' would have shared its habitat with the [[oviraptoridae\|oviraptorid]] ''[[Luoyanggia]]'',<ref name=Lu2009/> the [[sauropoda\|sauropods]] ''[[Xianshanosaurus]]'',<ref name=Lu2009>{{cite journal \| last1 = Lü \| first1 = J. \| last2 = Xu \| first2 = L. \| last3 = Jiang \| first3 = X. \| last4 = Jia \| first4 = S. \| last5 = Li \| first5 = M. \| last6 = Yuan \| first6 = C. \| last7 = Zhang \| first7 = X. \| last8 = Ji \| first8 = Q. \| year = 2009 \| title = A preliminary report on the new dinosaurian fauna from the Cretaceous of the Ruyang Basin, Henan Province of central China \| url = http://www.reportshop.co.kr/kstudy/2785/D2784271.html \| journal = Journal of the Paleontological Society of Korea \| volume = 25 \| pages = 43–56 }}</ref> ''[[Yunmenglong]]'',<ref name=Yunmenglong>{{Cite journal \| last1 = Lü \| first1 = J. \| last2 = Xu \| first2 = L. \| last3 = Pu \| first3 = H. \| last4 = Zhang \| first4 = X. \| last5 = Zhang \| first5 = Y. \| last6 = Jia \| first6 = S. \| last7 = Chang \| first7 = H. \| last8 = Zhang \| first8 = J. \| last9 = Wei \| first9 = X. \| title = A new sauropod dinosaur (Dinosauria, Sauropoda) from the late Early Cretaceous of the Ruyang Basin (central China) \| doi = 10.1016/j.cretres.2013.04.009 \| journal = Cretaceous Research \| volume = 44 \| pages = 202–213 \| year = 2013 \| bibcode = 2013CrRes..44..202L }}</ref> ''[[Ruyangosaurus]]''<ref name="luetal">{{cite journal \| last1 = Lü \| first1 = J \| last2 = Xu \| first2 = L \| last3 = Jia \| first3 = S \| last4 = Zhang \| first4 = X \| last5 = Zhang \| first5 = J \| last6 = Yang \| first6 = L \| last7 = You \| first7 = H \| last8 = Ji \| first8 = Q \| year = 2009 \| title = A new gigantic sauropod dinosaur from the Cretaceous of Ruyang, Henan, China \| journal = Geological Bulletin of China \| volume = 28 \| issue = 1\| pages = 1–10 }}</ref> and ''[[Huanghetitan]]'',<ref name="luetal2007">{{cite journal\|author=Lu J., Xu\|author2=L., Zhang\|author3=X., Hu\|author4=W., Wu\|author5=Y., Jia, S.\|author6=Ji, Q.\|name-list-style=amp \|title=A New Gigantic Sauropod Dinosaur with the Deepest Known Body Cavity from the Cretaceous of Asia\|journal=Acta Geologica Sinica \|volume=81\|issue=2\|pages=167\|doi=10.1111/j.1755-6724.2007.tb00941.x\|year=2007\|bibcode=2007AcGlS..81..167L \|s2cid=128462121 }}</ref> an indeterminate [[ornithomimidae\|ornithomimid]],<ref>A preliminary report on the new dinosaurian fauna from the Cretaceous of the Ruyang Basin, Henan Province of central China. J Paleontol Soc Kor. 25(1):43–56.</ref> an indeterminate [[iguanodontia\|iguanodontian]],<ref>Zhang YY, Lu¨ JC, Pu HY, Xu L, Shang YH, Jia SH, Zhang JM. 2013. The discovery of iguanodontid dinosaur from the late Early Cretaceous strata of Ruyang Basin, Henan and its stratigraphic significance. Geol Bull China. 32(9):1344– 1348.</ref> and an indeterminate [[carcharodontosauria\|carcharodontosaurian]].<ref>{{Cite journal\|last1=Lü\|first1=Junchang\|last2=Xu\|first2=Li\|last3=Pu\|first3=Hanyong\|last4=Jia\|first4=Songhai\|last5=Azuma\|first5=Yoichi\|last6=Chang\|first6=Huali\|last7=Zhang\|first7=Jiming\|date=2016-02-17\|title=Paleogeographical significance of carcharodontosaurid teeth from the late Early Cretaceous of Ruyang, Henan Province of central China\|url=http://www.tandfonline.com/doi/full/10.1080/08912963.2014.947287\|journal=Historical Biology\|language=en\|volume=28\|issue=1–2\|pages=8–13\|doi=10.1080/08912963.2014.947287\|bibcode=2016HBio...28....8L \|s2cid=53410808\|issn=0891-2963}}</ref>

	==See also==		==See also==

← Previous revision		Revision as of 16:29, 25 May 2025
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	In a 2015 publication, [[Victoria Arbour]] and [[Phillip J. Currie]] determined that ''Zhongyuansaurus'' may be a [[junior synonym]] of ''[[Gobisaurus domoculus]]'', as they recognized all the diagnosable characteristics of ''Gobisaurus'' in the ''Zhongyuansaurus'' holotype, except where these could not be assessed due to damage.<ref name="Arbour2015">{{Cite journal \|last1=Arbour \|first1=Victoria M. \|last2=Currie \|first2=Philip J. \|date=2015-07-28 \|title=Systematics, phylogeny and palaeobiogeography of the ankylosaurid dinosaurs \|journal=Journal of Systematic Palaeontology \|language=en \|volume=14 \|issue=5 \|pages=385–444 \|doi=10.1080/14772019.2015.1059985 \|issn=1477-2019}}</ref>		In a 2015 publication, [[Victoria Arbour]] and [[Phillip J. Currie]] determined that ''Zhongyuansaurus'' may be a [[junior synonym]] of ''[[Gobisaurus domoculus]]'', as they recognized all the diagnosable characteristics of ''Gobisaurus'' in the ''Zhongyuansaurus'' holotype, except where these could not be assessed due to damage.<ref name="Arbour2015">{{Cite journal \|last1=Arbour \|first1=Victoria M. \|last2=Currie \|first2=Philip J. \|date=2015-07-28 \|title=Systematics, phylogeny and palaeobiogeography of the ankylosaurid dinosaurs \|journal=Journal of Systematic Palaeontology \|language=en \|volume=14 \|issue=5 \|pages=385–444 \|doi=10.1080/14772019.2015.1059985 \|issn=1477-2019}}</ref>

			[[File:Zhongyuansaurus junchangi.png\|thumb\|Life reconstruction of ''Z. junchangi'']]
	In 2025, Zhang et al. described ''Zhongyuansaurus junchangi'' as a new species in the genus based on the holotype, 41HIII0708, which comprises a right mandible, 14 free caudal verterbae and seven fused caudal vertebrae forming the club 'handle', ten [[haemal arch]]es, four ribs, the left humerus, one metatarsal, and 41 osteoderms. The specific name, ''junchangi'', honors Chinese paleontologist [[Lü Junchang]] and his work in Henan. They noted several characteristics that could be used to distinguish ''Zhongyuansaurus'' from other Asian ankylosaurids, including ''Gobisaurus'' and ''[[Shamosaurus]]'' (an ankylosaurid similar to ''Gobisaurus''). The specimen was found in the same rock layers as ''Z. luoyangensis''.<ref name="Z.junchangi">{{Cite journal \|last1=Zhang \|first1=Ji-ming \|last2=Jia \|first2=Lei \|last3=Xu \|first3=Li \|last4=You \|first4=Hai-lu \|last5=Gao \|first5=Dian-song \|last6=Liu \|first6=Di \|last7=Li \|first7=Yu \|last8=Wang \|first8=Yan-chao \|date=March 2025 \|title=河南汝阳盆地早白垩世甲龙科化石新材料 \|trans-title=New ankylosaurid material from the Lower Cretaceous of the Ruyang Basin, Henan Province \|url=http://gswxb.cnjournals.cn/gswxb/article/abstract/20250104 \|journal=Acta Palaeontologica Sinica \|language=zh \|issue=1 \|pages=60–73 \|doi=10.19800/j.cnki.aps.2024037 \|doi-access=free}}</ref>		In 2025, Zhang et al. described ''Zhongyuansaurus junchangi'' as a new species in the genus based on the holotype, 41HIII0708, which comprises a right mandible, 14 free caudal verterbae and seven fused caudal vertebrae forming the club 'handle', ten [[haemal arch]]es, four ribs, the left humerus, one metatarsal, and 41 osteoderms. The specific name, ''junchangi'', honors Chinese paleontologist [[Lü Junchang]] and his work in Henan. They noted several characteristics that could be used to distinguish ''Zhongyuansaurus'' from other Asian ankylosaurids, including ''Gobisaurus'' and ''[[Shamosaurus]]'' (an ankylosaurid similar to ''Gobisaurus''). The specimen was found in the same rock layers as ''Z. luoyangensis''.<ref name="Z.junchangi">{{Cite journal \|last1=Zhang \|first1=Ji-ming \|last2=Jia \|first2=Lei \|last3=Xu \|first3=Li \|last4=You \|first4=Hai-lu \|last5=Gao \|first5=Dian-song \|last6=Liu \|first6=Di \|last7=Li \|first7=Yu \|last8=Wang \|first8=Yan-chao \|date=March 2025 \|title=河南汝阳盆地早白垩世甲龙科化石新材料 \|trans-title=New ankylosaurid material from the Lower Cretaceous of the Ruyang Basin, Henan Province \|url=http://gswxb.cnjournals.cn/gswxb/article/abstract/20250104 \|journal=Acta Palaeontologica Sinica \|language=zh \|issue=1 \|pages=60–73 \|doi=10.19800/j.cnki.aps.2024037 \|doi-access=free}}</ref>