Wikipedia

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 (Barremian).[1]

Ejinhoro Formation
Stratigraphic range: Early Cretaceous
Barremian
TypeGeological formation
Lithology
PrimarySandstone
OtherMudstone, siltstone
Location
Coordinates39°24′N 108°24′E / 39.4°N 108.4°E / 39.4; 108.4
Approximate paleocoordinates40°30′N 105°30′E / 40.5°N 105.5°E / 40.5; 105.5
RegionInner Mongolia
CountryChina
ExtentOrdos Basin
Ejinhoro Formation is located in China
Ejinhoro Formation
Ejinhoro Formation (China)
Ejinhoro Formation is located in Inner Mongolia
Ejinhoro Formation
Ejinhoro Formation (Inner Mongolia)

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

Fossil content

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Mammals

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Mammals
TaxaPresenceNotesImages

Genus:

  1. H. chowi

A single dentary[3]

A gobiconodontid

Dinosaurs

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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."[4]
  2. "Partial cranial material."[4]
  1. indeterminate
 A large saurischian.
  1. S. youngi

"Near-complete articulated skeleton."[5]

 A troodontid.
  1. indeterminate

Isolated teeth.

A stegosaurid.

  1. W. ordosensis
 A large stegosaurid. "Partial skeleton, plate, vertebra, adult."[6]

Pterosaurs

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Indeterminate pterosaur remains have also been recovered from the formation.[7]

See also

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References

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  1. ↑ Cuenca−Bescós, G.; Canudo, J.I. (2003). "A new gobiconodontid mammal from the Early Cretaceous of Spain and its palaeogeographic implications". Acta Palaeontologica Polonica. 48 (4): 575–582.
  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. 1 2 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. p. 243. ISBN 978-0-231-11918-4.{{cite book}}: CS1 maint: multiple names: authors list (link)
  4. 1 2 "Table 22.1," in Weishampel, et al. (2004). Page 479.
  5. ↑ "Table 9.1," in Weishampel, et al. (2004). Page 185.
  6. ↑ "Table 16.1," in Weishampel, et al. (2004). Page 345.
  7. ↑ 2008 - Zitteliana - Pterosaurs
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