Ejinhoro Formation

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]

Ejinhoro Formation
Stratigraphic range: Aptian-Albian
113 Ma
↓
TypeGeological formation
Lithology
PrimarySandstone
OtherMudstone, siltstone
Location
Coordinates39.4°N 108.4°E / 39.4; 108.4
Approximate paleocoordinates40.5°N 105.5°E / 40.5; 105.5
RegionInner Mongolia
Country China
ExtentOrdos Basin
Ejinhoro Formation (China)
Ejinhoro Formation (Inner Mongolia)

Dinosaur remains are among the fossils that have been recovered from the formation.[2]

Fossil content

Dinosaurs
Dinosaurs
TaxaPresenceNotesImages

Genus:

  1. C. sp.

Isolated teeth.

A sauropod.
Sinornithoides
Wuerhosaurus
  1. P. neimongoliensis
  2. P. ordosensis
 A ceratopsian.
  1. "[One] nearly complete skeleton and other fragmentary material."[3]
  2. "Partial cranial material."[3]
  1. indeterminate
 A large saurischian.
  1. S. youngi

"Near-complete articulated skeleton."[4]

 A troodontid.
  1. indeterminate

Isolated teeth.

A stegosaurid.

  1. W. ordosensis
 A large stegosaurid. "Partial skeleton, plate, vertebra, adult."[5]

Indeterminate pterosaur remains have also been recovered from the formation.[6]

See also
  • List of dinosaur-bearing rock formations

References
  1. Sereno, P.C. (2010). "Taxonomy, cranial morphology, and relationships of parrot-beaked dinosaurs (Ceratopsia: Psittacosaurus)." New Perspectives on Horned Dinosaurs. Bloomington: Indiana, 21-58.
  2. 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. "Table 22.1," in Weishampel, et al. (2004). Page 479.
  4. "Table 9.1," in Weishampel, et al. (2004). Page 185.
  5. "Table 16.1," in Weishampel, et al. (2004). Page 345.
  6. 2008 - Zitteliana - Pterosaurs
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