Tuchengzi Formation Stratigraphic range: Late Jurassic |
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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]
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
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Notes Uncertain or tentative data are in small text; |
Genus | Species | County | Member | Abundance | Notes | Images |
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C. youngi |
"Partial skull with mandible, cervicals, humerus, and scapula."[3] |
A primitive ceratopsian[2] |
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Grallator isp. |
Footprints belonging to the Grallator form taxon, made by an unknown small theropod.[4] |
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Menglongipus |
M. sinensis |
Hebei |
Footprints belonging to the Menglongipus sinensis form taxon, made by an unknown small (~65 cm long) deinonychosaur[4] |