Topic
Mamenchisaurus
About: Mamenchisaurus is a research topic. Over the lifetime, 9 publications have been published within this topic receiving 88 citations.
Papers
TL;DR: Qijianglong guokr, gen. et al. as discussed by the authors represents a mamenchisaurid eusauropod from the Late Jurassic of southern China.
Abstract: —Qijianglong guokr, gen. et sp. nov., represents a mamenchisaurid eusauropod from the Late Jurassic of southern China. The holotype consists of an incomplete skull, partly articulated axial skeleton, and fragmentary appendicular skeleton. A well-preserved braincase and skull roof provide rare insights into the poorly known neurocranial anatomy of mamenchisaurids and reveal a unique combination of characters such as an accessory tuber at the base of planar basipterygoid process and parietal excluding frontal from the anterior margin of the supratemporal fenestra. The cervical vertebrae have a distinct finger-like process extending from the postzygapophyseal process beside a zygapophyseal contact. Qijianglong is the first mamenchisaurid from the Late Jurassic of China that is definitively distinct from Mamenchisaurus, indicating greater morphological and taxonomic diversity of the poorly represented Late Jurassic mamenchisaurids. The occurrence of Qijianglong is consistent with a scenario in which m...
42 citations
TL;DR: Anatomical comparisons of the cervical vertebrae of Klamelisaurus to several other sauropodomorphs and insights from myological studies of extant archosaurs strongly suggest that this latter structure is an epaxial muscle scar that is distinct from pneumatic structures of the lateral surface of the neural spine.
Abstract: Fossil-rich deposits from the Middle and Late Jurassic of China have yielded a diverse array of sauropod dinosaurs, including numerous species referred to Mamenchisaurus and Omeisaurus. Despite an ...
30 citations
TL;DR: Fusion of centra of the posterior dorsal vertebrae are similar to those in other mamenchisaurid dinosaurs, including Mamenchisaurus hochuanesis, M. youngi and Chuanjiesaurus anaensis and can be recognized as a synapomorphic character of the Mamench isauridae.
Abstract: A new mamenchisaurid dinosaur, Eomamenchisaurus yuanmouensis gen et sp nov is erected based on an incomplete skeleton from the Zhanghe Formation, the Middle Jurassic of Yuanmou, Yunnan Province The new taxon is characterized by absence of pleurocoels in dorsal vertebrae and the dorsal verterbrae with slightly convex anterior articular surfaces, moderately concave posterior articular surfaces; the fourth trochanter is developed posteromedially on the femur; length ratio of the tibia to the femur is approximately 064; and the shaft of the ischium is rod-like Two fused centra of the posterior dorsal vertebrae (the presumed 9th and the 10th dorsal vertebrae) are similar to those in other mamenchisaurid dinosaurs, including Mamenchisaurus hochuanesis, M youngi and Chuanjiesaurus anaensis Therefore, fusion of centra of the ninth and the tenth dorsal vertebrae can be recognized as a synapomorphic character of the Mamenchisauridae
20 citations
Journal Article•
TL;DR: Wang et al. as discussed by the authors found three succeeding dinosaur faunas that represent the Early, Middle and Late Jurassic ages respectively are found in one section, which is also rarely seen around the world.
Abstract: Although the Jurassic is a major coal-making period worldwide, no coal measures appear in Yunnan and central and southern Sichuan. Instead, there occur a unique "red rock series". In such an environment various types of dinosaurs such as Sauropoda lived and flourished, which are quite different from dinosaur faunas found in northern and eastern China. Mamenchisaurus is mainly found in Sichuan and recently Mamenchisaurus yunnanensis sp. nov. has been found for the first time in the Jurassic "red beds" in Yunnan. This discovery strongly supports the view that Upper Jurassic strata are present in the Lufeng basin, Yunnan. The new fossil occurs in the Laochangqing-Dajianfeng section in the Chuanjie basin, Lufeng. In the lower part of the section there occur the Middle Jurassic Chuanjiesaurus and Early Jurassic Lufengosauru. The most important significance of this new discovery is that three succeeding dinosaur faunas that represent the Early, Middle and Late Jurassic ages respectively are found in one section, which is also rarely seen around the world.
15 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2020 | 1 |
| 2019 | 1 |
| 2018 | 1 |
| 2015 | 1 |
| 2011 | 1 |
| 2010 | 1 |