A new neornithischian dinosaur from the Upper Jurassic Tiaojishan Formation of northern China
文献类型：期刊论文
| 作者 | Yang, Yunfeng4,5; King, James L.1,2,5; Xu, Xing3,5 |
| 刊名 | PEERJ
 |
| 出版日期 | 2025-07-11 |
| 卷号 | 13期号:1页码:57 |
| 关键词 | Yanliao biota Neornithischia Laryngeal elements |
| ISSN号 | 2167-8359 |
| DOI | 10.7717/peerj.19664 |
| 英文摘要 | The Middle and Late Jurassic Yanliao Biota is different from other contemporaneous fossil assemblages in that it lacks neornithischian dinosaurs. Here, we report a new, early-diverging neornithischian, Pulaosaurus qinglong gen. et sp. nov., from the Upper Jurassic Tiaojishan Formation of Qinglong, Hebei Province, of northern China. Diagnostic or noteworthy morphological characteristics of P. qinglong include: five premaxillary teeth; a small boss is present on the caudoventral corner of the dorsal ramus of the jugal; a nuchal crest is located along the parietal; the manus has five digits; a supra-acetabular crest is present on the ilium; the paired arytenoids are gracile and leaf-like in form; the obturator process along the ischium is located near the pubic peduncle; a notch-like shaped obturator opening is present within the pubis; a robust fibular condyle forms a dorsoventrally extending crest on the tibia; a subtriangular flange on the anterior surface of the astragalus extends dorsolaterally along three distal tarsals; three of the distal tarsals are unfused, including a small drop-shaped distal tarsal 3; distal tarsal 3 is pierced by a foramen. A phylogenetic analysis places P. qinglong as one of the earliest-diverging neornithischians yet described. Moreover, P. qinglong represents the second known dinosaur to preserve ossified laryngeal elements, thus suggesting that a bird-like vocalization evolved early in non-avian dinosaur evolution. |
| WOS关键词 | JEHOLOSAURUS-SHANGYUANENSIS DINOSAURIA ; BASAL ORNITHOPOD DINOSAUR ; CHANGCHUNSAURUS-PARVUS ; CRANIAL ANATOMY ; JILIN PROVINCE ; YANLIAO BIOTA ; ORNITHISCHIA ; LARYNX ; MORPHOLOGY ; OSTEOLOGY |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:001531274600001 |
| 出版者 | PEERJ INC |
| 源URL | [http://119.78.100.205/handle/311034/24492]  |
| 专题 | 中国科学院古脊椎动物与古人类研究所 |
| 通讯作者 | Xu, Xing |
| 作者单位 | 1.Univ Bristol, Sch Earth Sci, Bristol, England 2.Colorado Northwestern Community Coll, Craig, CO USA 3.Yunnan Univ, Ctr Vertebrate Evolutionary Biol, Kunming, Peoples R China 4.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China 5.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Yunfeng,King, James L.,Xu, Xing. A new neornithischian dinosaur from the Upper Jurassic Tiaojishan Formation of northern China[J]. PEERJ,2025,13(1):57. |
| APA | Yang, Yunfeng,King, James L.,&Xu, Xing.(2025).A new neornithischian dinosaur from the Upper Jurassic Tiaojishan Formation of northern China.PEERJ,13(1),57. |
| MLA | Yang, Yunfeng,et al."A new neornithischian dinosaur from the Upper Jurassic Tiaojishan Formation of northern China".PEERJ 13.1(2025):57. |
入库方式： OAI收割
来源：古脊椎动物与古人类研究所
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