Earth:Ejinhoro Formation
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| Ejinhoro Formation Stratigraphic range: Aptian-Albian 113 Ma | |
|---|---|
| Type | Geological formation |
| Lithology | |
| Primary | Sandstone |
| Other | Mudstone, siltstone |
| Location | |
| Coordinates | [ ⚑ ] : 39°24′N 108°24′E / 39.4°N 108.4°E |
| Paleocoordinates | [ ⚑ ] 40°30′N 105°30′E / 40.5°N 105.5°E |
| Region | Inner Mongolia |
| Country |  China |
| Extent | Ordos Basin |
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The Ejinhoro Formation (simplified Chinese: 伊金霍洛组; traditional Chinese: 伊金霍洛組; pinyin: Yījīnhuòluò Zǔ) is a geological formation in Inner Mongolia, north China, whose strata date back to the Early Cretaceous period (Aptian/Albian age.[1]
Dinosaur remains are among the fossils that have been recovered from the formation.[2]
Fossil content
Mammals
| Mammals | ||||
|---|---|---|---|---|
| Taxa | Presence | Notes | Images | |
|
Genus:
|
A single dentary[3] |
|||
Dinosaurs
| Dinosaurs | ||||
|---|---|---|---|---|
| Taxa | Presence | Notes | Images | |
|
Genus:
|
Isolated teeth. |
A sauropod. |
||
|
A ceratopsian. | |||
|
A large saurischian. | |||
|
"Near-complete articulated skeleton."[5] |
A troodontid. | ||
|
Isolated teeth. |
A stegosaurid. | ||
|
A large stegosaurid. "Partial skeleton, plate, vertebra, adult."[6] | |||
Pterosaurs
Indeterminate pterosaur remains have also been recovered from the formation.[7]
See also
- List of dinosaur-bearing rock formations
References
- ↑ Sereno, P.C. (2010). "Taxonomy, cranial morphology, and relationships of parrot-beaked dinosaurs (Ceratopsia: Psittacosaurus)." New Perspectives on Horned Dinosaurs. Bloomington: Indiana, 21-58.
- ↑ Weishampel, David B; et al. (2004). "Dinosaur distribution (Early Cretaceous, Asia)." In: Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. Pp. 563-570. ISBN:0-520-24209-2.
- ↑ 3.0 3.1 Zofia Kielan-Jaworowska, Richard L. Cifelli, Zhe-Xi Luo (2004). "Chapter 12: Metatherians". Mammals from the Age of Dinosaurs: origins, evolution, and structure. New York: Columbia University Press. pp. 243. ISBN 978-0-231-11918-4.
- ↑ 4.0 4.1 "Table 22.1," in Weishampel, et al. (2004). Page 479.
- ↑ "Table 9.1," in Weishampel, et al. (2004). Page 185.
- ↑ "Table 16.1," in Weishampel, et al. (2004). Page 345.
- ↑ 2008 - Zitteliana - Pterosaurs
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