The Yixian Formation (simplified Chinese: 义县组; traditional Chinese: 義縣組; pinyin: Yìxiàn zǔ; formerly transcribed as Yihsien Formation) is a geological... 15 KB (1,619 words) - 20:07, 17 November 2023 |
 | The Yixian Formation (simplified Chinese: 义县组; traditional Chinese: 義縣組; pinyin: Yìxiàn zǔ) is a geological formation in Jinzhou, Liaoning, People's Republic... 108 KB (5,443 words) - 15:48, 27 April 2024 |
Prefecture of Yixian, near Beijing and Baoding Yi County, Shandong, now Yicheng District, Zaozhuang Yixian Formation, a geological formation in Liaoning... 480 bytes (92 words) - 11:13, 31 October 2023 |
 | 1999 Yixian Formation, China, Early Cretaceous (Aptian) (initially interpreted as an angiosperm) Chengia Yang, Lin & Wang, 2013, Yixian Formation, China... 40 KB (4,072 words) - 06:17, 22 April 2024 |
 | hatchlings. An embryo, still curled in its egg, has been reported from the Yixian Formation. Juvenile specimens can be identified by a combination of factors:... 107 KB (8,727 words) - 16:57, 4 April 2024 |
 | Cretaceous (section Geologic formations) Cretaceous Hell Creek Formation. Other important Cretaceous exposures occur in Europe (e.g., the Weald) and China (the Yixian Formation). In the area that... 91 KB (9,487 words) - 05:50, 24 April 2024 |
shangyuanensis (Dinosauria, Ornithischia) from the Lower Cretaceous Yixian Formation of China". Journal of Vertebrate Paleontology. 32 (6): 1370–1395. Bibcode:2012JVPal... 180 KB (7,310 words) - 02:01, 25 April 2024 |
 | Psittacosaurus (category Yixian fauna) lowest beds of the Yixian Formation. Over 200 specimens attributed to this genus have been recovered from these and other beds of the Yixian, the age of which... 92 KB (10,764 words) - 14:48, 28 April 2024 |
the Yixian Formation of Inner Mongolia, Longicrusavis from the Yixian Formation of Liaoning Province, Parahongshanornis from the Jiufotang Formation of... 5 KB (377 words) - 18:48, 13 September 2021 |
 | 1999 Yixian Formation, China, Early Cretaceous (Aptian) (initially interpreted as an angiosperm) Chengia Yang, Lin & Wang, 2013, Yixian Formation, China... 10 KB (988 words) - 07:22, 22 April 2024 |