Tuchengzi Formation

Tuchengzi Formation
Stratigraphic range: Late Jurassic
Type Geological formation
Underlies Yixian Formation
Overlies Tiaojishan Formation
Thickness 870-2900 meters[1]
Lithology
Primary Shale
Other Sandstone
Location
Region Asia
Country  China

The Tuchengzi Formation (simplified Chinese: 土城子组; traditional Chinese: 土城子組; pinyin: Tǔchéngzǐ Zǔ) is a geological formation in China whose strata date back to the Late Jurassic. Dinosaur fossils, particularly footprints, have been found from the formation.[2]

Vertebrate paleofauna

Indeterminate sauropod remains formerly attributed to the Mamenchisauridae and Brachiosauridae have been found in Liaoning, China.[2] Theropod tracks, including those made by avialans, have been found in Liaoning, China.[2]

Color key
Taxon Reclassified taxon Taxon falsely reported as present Dubious taxon or junior synonym Ichnotaxon Ootaxon Morphotaxon
Notes
Uncertain or tentative data are in small text; crossed out data are discredited.
Genus Species County Member Abundance Notes Images

Chaoyangsaurus

C. youngi

Liaoning

"Partial skull with mandible, cervicals, humerus, and scapula."[3]

A primitive ceratopsian[2]

Grallator

Grallator isp.

Hebei

Footprints belonging to the Grallator form taxon, made by an unknown small theropod.[4]

Menglongipus

M. sinensis

Hebei

Footprints belonging to the Menglongipus sinensis form taxon, made by an unknown small (~65 cm long) deinonychosaur[4]

See also

References

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  1. ^ Wang, Y.; Ken, S.; Zhang, W.; Zheng, S. (2006). "Biodiversity and palaeoclimate of the Middle Jurassic floras from the Tiaojishan Formation in western Liaoning, China". Progress in Natural Science 16 (1): 222–230. doi:10.1080/10020070612330087. 
  2. ^ a b c d Weishampel, David B; et al. (2004). "Dinosaur distribution (Late Jurassic, Asia)." In: Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. Pp. 550–552. ISBN 0-520-24209-2.
  3. ^ "Table 22.1," in Weishampel, et al. (2004). Page 480.
  4. ^ a b Xing, L.; Harris, J.D.; Sun, D.; Zhao, H. (2010). "The earliest known deinonychosaur tracks from the Jurassic-Cretaceous boundary in Hebei Province, China". Acta Palaeontologica Sinica 48 (4): 662–671.