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{{Short description|Genus of ankylosaurid dinosaur}} |
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{{About|the extinct genus of dinosaur|the resort in Malaysia|Datai Langkawi}} |
{{About|the extinct genus of dinosaur|the resort in Malaysia|Datai Langkawi}} |
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{{Speciesbox |
{{Speciesbox |
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| fossil_range = [[Late Cretaceous]] |
| fossil_range = [[Late Cretaceous]] ([[Turonian]] to [[Coniacian]]), {{Geological range|96|90}} |
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| image = Datai (type specimen block).jpg |
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| image_caption = Type specimen block |
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| display_parents = 2 |
| display_parents = 2 |
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| genus = Datai |
| genus = Datai |
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'''''Datai''''' ({{IPA-all|ˌdɑˈtʰaɪ̯}}) is an [[extinct]] genus of [[Ankylosauridae|ankylosaurid]] [[dinosaur]] from the [[Late Cretaceous]] [[Zhoutian Formation]] of [[Jiangxi Province]], [[China]]. The genus contains a [[Monotypic taxon|single species]], '''''D. yingliangis''''', which is known from the [[Joint|articulated]] skulls and partial skeletons of two individuals. |
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'''''Datai''''' is a genus of [[Ankylosauridae|ankylosaurid]] [[dinosaur]] from the [[Zhoutian Formation]] of southeastern [[China]]. The genus contains a single species, '''''D. yingliangis''''', which is known from two specimens: YLSNHM 01002, the [[holotype]] of the genus, which consists of a skull and partial skeleton and the [[paratype]] YLSNHM 01003, which also consists of a skull and a less complete partial skeleton.<ref name=":0">{{Cite journal |last=Xing |first=Lida |last2=Niu |first2=Kecheng |last3=Mallon |first3=Jordan |last4=Miyashita |first4=Tetsuto |date=2023 |title=A new armored dinosaur with double cheek horns from the early Late Cretaceous of southeastern China |url=https://journals.library.ualberta.ca/vamp/index.php/VAMP/article/view/29396 |journal=Vertebrate Anatomy Morphology Palaeontology |language=en |volume=11 |doi=10.18435/vamp29396 |issn=2292-1389}}</ref> The generic name of the animal, ''Datai'', is a composite of the last character of the words 'tongda' (to understand/to be sensible) and 'antai' (stable) in Chinese [[Pinyin]]. The specific name ''yingliangis'' is in recognition of the Yingliang Group.<ref name=":0" /> |
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== Discovery and naming == |
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[[File:Datai (type locality).jpg|thumb|left|[[Type locality (biology)|Type locality]] of ''Datai'']] |
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The ''Datai'' fossil material was discovered in 2016, in sediments of the [[Zhoutian Formation]] in [[Mazhou]], [[Huichang County]], Jiangxi Province, China. The fossils were then obtained by the [[Yingliang Stone Natural History Museum]] two years later, where they are currently stored. The two known specimens—representing different ages of immaturity—were found articulated and in association.<ref name="Datai">{{Cite journal |last1=Xing |first1=Lida |last2=Niu |first2=Kecheng |last3=Mallon |first3=Jordan |last4=Miyashita |first4=Tetsuto |date=2023 |url=https://www.researchgate.net/publication/378305788 |title=A new armored dinosaur with double cheek horns from the early Late Cretaceous of southeastern China |journal=Vertebrate Anatomy Morphology Palaeontology |language=en |volume=11 |doi=10.18435/vamp29396 |doi-broken-date=2024-03-23 |issn=2292-1389|doi-access=free }}</ref> |
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The [[holotype]] specimen, YLSNHM 01002, consists of a skull, four [[dorsal vertebrae]], [[ribs]], four [[Anatomical terms of location#Proximal and distal|distal]] [[caudal vertebrae]] surrounded by [[ossified]] [[tendon]]s (likely indicative of the presence of a tail club), incomplete [[pectoral girdle]]s, the left arm (including the [[humeral]] head and distal [[radius]] and [[ulna]]), a fragmentary left ilium, a distal right [[femur]], several [[osteoderms]].<ref name="Datai" /> |
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The [[paratype]] specimen, YLSNHM 01003, also includes a skull, in addition to all of the [[cervical vertebrae]], five dorsal vertebrae, incomplete pectoral girdles, the left elbow region (distal humerus and [[Anatomical terms of location#Proximal and distal|proximal]] radius and ulna), and osteoderms.<ref name="Datai" /> |
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In 2024, Xing ''et al.'' [[Species description|described]] ''Datai yingliangis'' as a new genus and species of [[ankylosaurine]] dinosaur based on these fossil remains. The [[Genus|generic name]], {{'}}''Datai''{{'}} ({{IPA-all|ˌdɑˈtʰaɪ̯}}), is a composite of the last character of the words 'tongda' ({{IPA-all|ˌtɒŋˈdɑ}}) (to understand/to be sensible) and 'antai' ({{IPA-all|ˌɑnˈtʰaɪ̯}}) (stable) in Chinese [[Pinyin]]. The [[Specific name (zoology)|specific name]], {{'}}''yingliangis''{{'}} ({{IPA-all|ˌjɪŋˈlɪɑŋɪs}}), is in recognition of the Yingliang Group.<ref name="Datai" /> |
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[[File:Datai (type skulls).jpg|thumb|''Datai'' skull material]] |
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== Classification == |
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[[File:Datai.png|thumb|[[Life restoration]]]] |
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Xing Lida pointed out that in the past, ankylosaurian [[phylogenies]] had been little stable with many [[clade]]s tending to collapse into [[polytomy|polytomies]]. In the study he used the traits of ''Datai'' to improve the resolution. For their phylogenetic analysis, Xing ''et al.'' (2024) tested two character matrices. The first was based on the findings of Zheng ''et al.'' (2018) with fourteen poorly preserved taxa being deleted or "pruned" by Xing, and the second was based on the findings of Raven ''et al.'' (2023) with 34-taxon deletion. The first tree recovers ''Datai'' as a basal [[Ankylosaurinae|ankylosaurine]], while the second recovers it as a sister taxon to the two ''[[Pinacosaurus]]'' spp.<ref name="Datai"></ref> |
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Both trees are reproduced below excluding the outgroups for improved readability: |
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{{clade gallery |width=450px |height=400px |
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|caption1=Topology A: Zheng ''et al''. (2018) dataset<ref name="Jinyunpelta">{{Cite journal|author1=Wenjie Zheng |author2=Xingsheng Jin |author3=Yoichi Azuma |author4=Qiongying Wang |author5=Kazunori Miyata |author6=Xing Xu |year=2018 |title=The most basal ankylosaurine dinosaur from the Albian–Cenomanian of China, with implications for the evolution of the tail club |journal=Scientific Reports |volume=8 |issue=1 |pages=Article number 3711 |doi=10.1038/s41598-018-21924-7 |pmc=5829254 |pmid=29487376 |bibcode=2018NatSR...8.3711Z }}</ref> + ''Datai'', 14-taxon deletion<ref name="Datai"></ref> |
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|cladogram1={{clade| style=font-size:90%;line-height:85% |
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|label1=[[Ankylosauridae]] |
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|1={{clade |
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|1=''[[Cedarpelta]]'' |
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|2=''[[Chuanqilong]]'' |
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|3=''[[Liaoningosaurus]]'' |
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|4=[[Shamosaurinae]] |
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|label5=[[Ankylosaurinae]] |
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|5={{clade |
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|1={{clade |
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|1=''[[Crichtonpelta]]'' |
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|2=''[[Jinyunpelta]]'' }} |
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|2={{clade |
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|1='''''Datai''''' |
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|2={{clade |
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|1=''[[Pinacosaurus]]'' spp. |
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|2={{clade |
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|1={{clade |
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|1=''[[Tsagantegia]]'' |
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|2={{clade |
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|1=''[[Saichania]]'' |
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|2={{clade |
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|1=''[[Tarchia kielanae]]'' |
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|2=''[[Zaraapelta]]'' }} }} }} |
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|2={{clade |
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|1=''[[Dyoplosaurus]]'' |
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|2={{clade |
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|1={{clade |
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|1=''[[Talarurus]]'' |
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|2=''[[Nodocephalosaurus]]'' }} |
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|2={{clade |
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|1=''[[Ziapelta]]'' |
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|2={{clade |
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|1=''[[Zuul]]'' |
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|2={{clade |
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|1=''[[Anodontosaurus lambei]]'' |
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|2={{clade |
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|1=''[[Scolosaurus]]'' |
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|2={{clade |
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|1=''[[Ankylosaurus]]'' |
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|2=''[[Euoplocephalus]]'' |
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}} }} }} }} }} }} }} }} }} }} }} }} }} |
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|caption2=Topology B: Raven ''et al''. (2023) dataset,<ref name="Raven2023">{{cite journal |last1=Raven |first1=T. J. |last2=Barrett |first2=P. M. |last3=Joyce |first3=C. B. |last4=Maidment |first4=S. C. R. |year=2023 |title=The phylogenetic relationships and evolutionary history of the armoured dinosaurs (Ornithischia: Thyreophora) |journal=Journal of Systematic Palaeontology |volume=21 |issue=1 |at=2205433 |doi=10.1080/14772019.2023.2205433 |bibcode=2023JSPal..2105433R }}</ref> 34-taxon deletion |
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|cladogram2={{clade| style=font-size:90%;line-height:85% |
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|label1=[[Ankylosauridae]] |
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|1={{clade |
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|1=''[[Jinyunpelta]]'' |
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|2=''[[Gobisaurus]]'' |
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|3=''[[Chuanqilong]]'' |
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|4={{clade |
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|1=''[[Shamosaurus]]'' |
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|label2=[[Ankylosaurinae]] |
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|2={{clade |
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|1={{clade |
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|1={{clade |
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|1=''[[Saichania]]'' |
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|2={{clade |
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|1='''''Datai''''' |
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|2=''[[Pinacosaurus]]'' spp. }} |
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|3={{clade |
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|1={{clade |
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|1=''[[Crichtonpelta]]'' |
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|2={{clade |
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|1=''[[Akainacephalus]]'' |
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|2=''[[Ziapelta]]'' }} }} |
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|2={{clade |
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|1=''[[Zaraapelta]]'' |
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|2={{clade |
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|1=''[[Talarurus]]'' |
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|2=''[[Tsagantegia]]'' }} }} }} |
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|4={{clade |
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|1=''[[Minotaurasaurus]]'' |
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|2=''[[Tarchia teresae]]'' }} }} |
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|2={{clade |
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|1=''[[Scolosaurus]]'' |
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|2={{clade |
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|1=''[[Dyoplosaurus]]'' |
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|2={{clade |
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|1=''[[Euoplocephalus]]'' |
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|2={{clade |
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|1=''[[Zuul]]'' |
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|2={{clade |
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|1=''[[Anodontosaurus lambei]]'' |
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|2=''[[Ankylosaurus]]'' |
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}} }} }} }} }} }} }} }} }} }} |
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}}<!-- end clade gallery--> |
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==References== |
==References== |
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{{Thyreophora}} |
{{Thyreophora}} |
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{{Portalbar|Dinosaurs|China}} |
{{Portalbar|Dinosaurs|China}} |
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{{taxonbar|from1=Q124616010|from2=Q124616017}} |
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[[Category:Cretaceous China]] |
[[Category:Cretaceous China]] |
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[[Category:Monotypic dinosaur genera]] |
[[Category:Monotypic dinosaur genera]] |
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[[Category:Late Cretaceous thyreophorans]] |
[[Category:Late Cretaceous thyreophorans]] |
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{{ankylosaurian stub}} |
{{ankylosaurian stub}} |
Revision as of 14:04, 23 March 2024
Datai | |
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Type specimen block | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Clade: | Dinosauria |
Clade: | †Ornithischia |
Clade: | †Thyreophora |
Clade: | †Ankylosauria |
Family: | †Ankylosauridae |
Subfamily: | †Ankylosaurinae |
Genus: | †Datai |
Species: | †D. yingliangis
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Binomial name | |
†Datai yingliangis Xing et al., 2024
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Datai (IPA: [ˌdɑˈtʰaɪ̯]) is an extinct genus of ankylosaurid dinosaur from the Late Cretaceous Zhoutian Formation of Jiangxi Province, China. The genus contains a single species, D. yingliangis, which is known from the articulated skulls and partial skeletons of two individuals.
Discovery and naming
The Datai fossil material was discovered in 2016, in sediments of the Zhoutian Formation in Mazhou, Huichang County, Jiangxi Province, China. The fossils were then obtained by the Yingliang Stone Natural History Museum two years later, where they are currently stored. The two known specimens—representing different ages of immaturity—were found articulated and in association.[1]
The holotype specimen, YLSNHM 01002, consists of a skull, four dorsal vertebrae, ribs, four distal caudal vertebrae surrounded by ossified tendons (likely indicative of the presence of a tail club), incomplete pectoral girdles, the left arm (including the humeral head and distal radius and ulna), a fragmentary left ilium, a distal right femur, several osteoderms.[1]
The paratype specimen, YLSNHM 01003, also includes a skull, in addition to all of the cervical vertebrae, five dorsal vertebrae, incomplete pectoral girdles, the left elbow region (distal humerus and proximal radius and ulna), and osteoderms.[1]
In 2024, Xing et al. described Datai yingliangis as a new genus and species of ankylosaurine dinosaur based on these fossil remains. The generic name, 'Datai' (IPA: [ˌdɑˈtʰaɪ̯]), is a composite of the last character of the words 'tongda' (IPA: [ˌtɒŋˈdɑ]) (to understand/to be sensible) and 'antai' (IPA: [ˌɑnˈtʰaɪ̯]) (stable) in Chinese Pinyin. The specific name, 'yingliangis' (IPA: [ˌjɪŋˈlɪɑŋɪs]), is in recognition of the Yingliang Group.[1]
Classification
Xing Lida pointed out that in the past, ankylosaurian phylogenies had been little stable with many clades tending to collapse into polytomies. In the study he used the traits of Datai to improve the resolution. For their phylogenetic analysis, Xing et al. (2024) tested two character matrices. The first was based on the findings of Zheng et al. (2018) with fourteen poorly preserved taxa being deleted or "pruned" by Xing, and the second was based on the findings of Raven et al. (2023) with 34-taxon deletion. The first tree recovers Datai as a basal ankylosaurine, while the second recovers it as a sister taxon to the two Pinacosaurus spp.[1]
Both trees are reproduced below excluding the outgroups for improved readability:
References
- ^ a b c d e f Xing, Lida; Niu, Kecheng; Mallon, Jordan; Miyashita, Tetsuto (2023). "A new armored dinosaur with double cheek horns from the early Late Cretaceous of southeastern China". Vertebrate Anatomy Morphology Palaeontology. 11. doi:10.18435/vamp29396 (inactive 2024-03-23). ISSN 2292-1389.
{{cite journal}}
: CS1 maint: DOI inactive as of March 2024 (link) - ^ Wenjie Zheng; Xingsheng Jin; Yoichi Azuma; Qiongying Wang; Kazunori Miyata; Xing Xu (2018). "The most basal ankylosaurine dinosaur from the Albian–Cenomanian of China, with implications for the evolution of the tail club". Scientific Reports. 8 (1): Article number 3711. Bibcode:2018NatSR...8.3711Z. doi:10.1038/s41598-018-21924-7. PMC 5829254. PMID 29487376.
- ^ Raven, T. J.; Barrett, P. M.; Joyce, C. B.; Maidment, S. C. R. (2023). "The phylogenetic relationships and evolutionary history of the armoured dinosaurs (Ornithischia: Thyreophora)". Journal of Systematic Palaeontology. 21 (1). 2205433. Bibcode:2023JSPal..2105433R. doi:10.1080/14772019.2023.2205433.