10.6084/M9.FIGSHARE.C.6261896
Hui Dai
Hui
Dai
Chao Tan
Chao
Tan
Qingyu Ma
Qingyu
Ma
Ning Li
Ning
Li
Haidong Yu
Haidong
Yu
Can Xiong
Can
Xiong
Zhaoying Wei
Zhaoying
Wei
Ping Wang
Ping
Wang
Jian Yi
Jian
Yi
Guangbiao Wei
Guangbiao
Wei
Hailu You
Hailu
You
Xinxin Ren
Xinxin
Ren
0000-0002-9896-7193
Supplementary material from "New macronarian from the Middle Jurassic of Chongqing, China: phylogenetic and biogeographic implications for neosauropod dinosaur evolution"
Macronaria is a clade of gigantic body-sized sauropod dinosaurs widely distributed from the Late Jurassic to the Late Cretaceous globally. However, its origin, early diversification, and dispersal are still controversial. Here, we report a new macronarian <i>Yuzhoulong qurenensis</i> gen. et sp. nov. excavated from the Middle Jurassic (Bathonian) Lower Shaximiao Formation. <i>Yuzhoulong qurenensis</i> bears a unique combination of features, such as two accessory fossae that exist on the posterior surface of dorsal diapophyses of anterior dorsal vertebrae. Results of phylogenetic analyses demonstrate it is one of the earliest-diverging macronarians. This new material represents a Middle Jurassic fossil record of macronarian sauropod worldwide and improves the understanding of the early diversity and dispersal of the Neosauropoda. This discovery further supports that sauropods achieved a more rapid and varied morphological diversity and palaeogeographical dispersal in Middle Jurassic.
The Royal Society
2022
2022-10-23
2022-11-02
Collection
CC BY 4.0