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[古生物学•2025] Wudingloong wui•新的侏罗纪恐龙代表了东亚最早和最古老的Sauropodomorph
Wudingloong Wui Y.-M。王,张,Y.-C。 Wang,H。Xu,Chen,Feng,X. Xu,T。Wang&You,2025 doi:doi.org/10.1038/s41598-025-12185-2摘要,来自Yunnan Yunnan Province的Wuding County wande County wande Town的下层侏罗纪镇的新恐龙新恐龙组合,最近发现了。在这里,来自该站点Wudingloong wui Gen的新蜥蜴d。 et sp。十一月,根据部分骨骼进行描述。 Wudingloong is different from other non-sauropodiform sauropodomorphs particularly in having an ascending ramus of the maxilla excavated by triangular antorbital fossa, distinct ventral keel on the middle cervical centra, a slender humerus with a flat and low humeral head, a gracile metacarpal V with the proximal end as wide as the distal end, and a large and robust ungual of manual Digit I. Wudingloong是从最低侏罗纪Yubacun组中发掘出来的,这是东亚最低的恐龙骨床。系统发育分析和地层地平线都表明,旺云芳代表了迄今为止在东亚发现的最早差异和地层上最古老的锯齿状恐龙。这个新分类群的发现提供了进一步的证据,表明西南中国索罗培统治的组合是全球范围内最多样化和形态学上最多样化和形态学上不同的,以各种分类为代表,由从马斯多达(Massopoda)底部到非Sauropodan sauropodan seremonstructss.sreconstructss.sreconthiperss.srecondedWudingloong Wui Y.-M。王,张,Y.-C。 Wang,H。Xu,Chen,Feng,X. Xu,T。Wang&You,2025 doi:doi.org/10.1038/s41598-025-12185-2摘要,来自Yunnan Yunnan Province的Wuding County wande County wande Town的下层侏罗纪镇的新恐龙新恐龙组合,最近发现了。在这里,来自该站点Wudingloong wui Gen的新蜥蜴d。 et sp。十一月,根据部分骨骼进行描述。 Wudingloong is different from other non-sauropodiform sauropodomorphs particularly in having an ascending ramus of the maxilla excavated by triangular antorbital fossa, distinct ventral keel on the middle cervical centra, a slender humerus with a flat and low humeral head, a gracile metacarpal V with the proximal end as wide as the distal end, and a large and robust ungual of manual Digit I. Wudingloong是从最低侏罗纪Yubacun组中发掘出来的,这是东亚最低的恐龙骨床。系统发育分析和地层地平线都表明,旺云芳代表了迄今为止在东亚发现的最早差异和地层上最古老的锯齿状恐龙。这个新分类群的发现提供了进一步的证据,表明西南中国索罗培统治的组合是全球范围内最多样化和形态学上最多样化和形态学上不同的,以各种分类为代表,由从马斯多达(Massopoda)底部到非Sauropodan sauropodan seremonstructss.sreconstructss.sreconthiperss.sreconded
来源:Novataxa | 物种新发现an,角度; AOF,孔孔窝; AR,关节; D,牙齿; J,Jugal; l,泪; lf,左额叶; LPF,左前额叶; M,上颌骨; p,顶叶; PF,前额叶;下午,preparkilla; PO,牙本质;流行,托管过程; Q,四分法; QJ,Quadratojugal; RF,右侧; RPF,右前额叶; SQ,鳞状; SA,伴STF,fenestra上空; n,鼻。比例尺等于5厘米。
an,角度; AOF,孔孔窝; AR,关节; D,牙齿; J,Jugal; l,泪; lf,左额叶; LPF,左前额叶; M,上颌骨; p,顶叶; PF,前额叶;下午,preparkilla; PO,牙本质;流行,托管过程; Q,四分法; QJ,Quadratojugal; RF,右侧; RPF,右前额叶; SQ,鳞状; SA,伴STF,fenestra上空; n,鼻。