Juramaia is an extinct genus of a therian mammal, possibly a very basal eutherian mammal, known from the Late Jurassic (Oxfordian stage) or Early Cretaceous...
7 KB (542 words) - 04:53, 22 May 2024
considered Juramaia as a stem therian instead, and the Late Jurassic dating has been questioned, with King and Beck (2020) suggesting that Juramaia may originate...
25 KB (2,151 words) - 04:52, 22 May 2024
upper jaw in other tetrapods. The earliest known therian mammal fossil is Juramaia, from China's Late Jurassic (Oxfordian stage). However, the age estimates...
11 KB (932 words) - 06:37, 19 May 2024
from Asia Chaoyangsaurus, an early marginocephalian dinosaur from Asia Juramaia, a basal mammal from Asia Archaeopteryx, the first known bird, from Europe...
8 KB (602 words) - 13:14, 28 February 2024
oldest-known fossil among the Eutheria ("true beasts") is the small shrewlike Juramaia sinensis, or "Jurassic mother from China", dated to 160 million years ago...
212 KB (22,687 words) - 17:52, 24 May 2024
Late Jurassic, represented by Juramaia, a eutherian mammal closer to the ancestry of placentals than marsupials. Juramaia is much more advanced than expected...
230 KB (24,796 words) - 20:15, 26 May 2024
study again recovered Eomaia as a basal eutherian. Evolution of mammals Juramaia (160 million years ago) Sinodelphys Ji, Q.; Luo, Z-X.; Yuan, C-X.; Wible...
15 KB (1,439 words) - 12:14, 8 January 2024
the eutherians are those more closely related to the placentals. Since Juramaia, the earliest known eutherian, lived 160 million years ago in the Jurassic...
140 KB (15,168 words) - 08:08, 25 May 2024
in the fossil record (Yinlong) and the oldest known eutherian mammal: Juramaia. 160 Ma Multituberculate mammals (genus Rugosodon) appear in eastern China...
83 KB (4,651 words) - 07:46, 12 April 2024
Juramaia was one of the earliest mammals, a basal eutherian from the Late Jurassic, no more than 10 cm long....
17 KB (1,968 words) - 07:36, 13 May 2024