The Tuchengzi Formation is a geological formation in China whose strata date back to the Late Jurassic

Late Jurassic

The Late Jurassic is the third epoch of the Jurassic Period, and it spans the geologic time from 161.2 ± 4.0 to 145.5 ± 4.0 million years ago , which is preserved in Upper Jurassic strata. In European lithostratigraphy, the name "Malm" indicates rocks of Late Jurassic age...

. Dinosaur fossil

Fossil

Fossils are the preserved remains or traces of animals , plants, and other organisms from the remote past...

s, particularly footprints, have been found from the formation.

Vertebrate paleofauna

Indeterminate sauropod remains formerly attributed to the Mamenchisauridae

Mamenchisauridae

Mamenchisauridae is an extinct family of sauropod dinosaurs. The family was first named by Chinese paleontologists C.C. Young and H.C. Chao in 1972, in a paper describing Mamenchisaurus. Other mamenchisaurids may include Bellusaurus, Chuanjiesaurus, Eomamenchisaurus, Hudiesaurus, Klamelisaurus,...

 and Brachiosauridae

Brachiosauridae

Brachiosauridae are a family of dinosaurs, whose members are known as brachiosaurids. They were herbivorous quadrupeds with longer forelegs than hind legs - the name derives from the Greek for arm lizard - and long necks...

 have been found in Liaoning

Liaoning

' is a province of the People's Republic of China, located in the northeast of the country. Its one-character abbreviation is "辽" , a name taken from the Liao River that flows through the province. "Níng" means "peace"...

, China. Theropod tracks, including those made by avialans, have been found in Liaoning

Liaoning

' is a province of the People's Republic of China, located in the northeast of the country. Its one-character abbreviation is "辽" , a name taken from the Liao River that flows through the province. "Níng" means "peace"...

, China.

Genus	Species	County	Member	Abundance	Notes	Images
Chaoyangsaurus Chaoyangsaurus Chaoyangsaurus was a marginocephalian dinosaur from the Late Jurassic of China...	C. youngi	Liaoning Liaoning ' is a province of the People's Republic of China, located in the northeast of the country. Its one-character abbreviation is "辽" , a name taken from the Liao River that flows through the province. "Níng" means "peace"...		"Partial skull with mandible, cervicals, humerus, and scapula."	A primitive ceratopsia Ceratopsia Ceratopsia or Ceratopia is a group of herbivorous, beaked dinosaurs which thrived in what are now North America, Europe, and Asia, during the Cretaceous Period, although ancestral forms lived earlier, in the Jurassic. The earliest known ceratopsian, Yinlong downsi, lived between 161.2 and 155.7... n
Grallator Grallator Grallator is an ichnogenus which covers a common type of small, three-toed print made by a variety of bipedal theropod dinosaurs. Grallator-type footprints have been found in formations dating from the late Triassic through to the early Cretaceous periods...	Grallator isp.	Hebei Hebei ' is a province of the People's Republic of China in the North China region. Its one-character abbreviation is "" , named after Ji Province, a Han Dynasty province that included what is now southern Hebei...			Footprints belonging to the Grallator form taxon, made by an unknown small theropod.
Menglongipus	M. sinensis	Hebei			Footprints belonging to the Menglongipus sinensis form taxon, made by an unknown small (~65 cm long) deinonychosaur Deinonychosauria The Deinonychosauria were a clade of coelurosaurian theropod dinosaurs from the Late Jurassic and Cretaceous periods. These omnivores and carnivores are known for their switchblade-like second toe claws and for displaying numerous bird-like characteristics. The clade has been divided into two...