Tianjialou Formation

Tianjialou Formation
Tianjialou Formation
Stratigraphic range: Aptian–Albian PreꞒ Ꞓ O S D C P T J K Pg N
Type	Geological formation
Unit of	Dasheng Group
Overlies	Malanggou Formation
Lithology
Primary	Sandstone, siltstone, mudstone
Other	Conglomerate
Location
Region	Shandong
Country	China

TypeGeological formation

Unit ofDasheng Group

OverliesMalanggou Formation

PrimarySandstone, siltstone, mudstone

The Tianjialou Formation is a Lower Cretaceous geologic formation in China. Its lithology is described as consisting "chiefly of a sequence of fine clastic lacustrine deposits, including feldspar sandstone, siltstone and mudstone".^[2] Dinosaur tracks have been discovered in the formation.

[1]

[2]

Genus	Species	Region	Material	Notes
Dromaeopodus^[3]	D. shandongensis	Houzuoshan Dinosaur Park in Lingquan Town, Junan County	Eight trackways, consisting of eighteen footprints in total	Large deinonychosaur tracks, most likely from a dromaeosaur. Toe and heel pads visible. Six trackways are parallel and closely spaced, suggesting group behavior.
Minisauripus^[4]	M. zhenshuonani	Houzuoshan Dinosaur Park in Lingquan Town, Junan County	Three footprints, two of which are part of a trackway	Small tridactyl theropod tracks
Shandongornipes^[2]	S. muxiai	Houzuoshan Dinosaur Park in Lingquan Town, Junan County	A trackway of five footprints	Moderately large, tetradactyl bird tracks with a reversed first toe; exceptionally long steps
Velociraptorichnus^[3]	V. sichuanensis	Houzuoshan Dinosaur Park in Lingquan Town, Junan County	A trackway of two footprints	Smaller deinonychosaur tracks

Tianjialou Formation

References

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Tianjialou Formation
Stratigraphic range: Aptian–Albian PreꞒ Ꞓ O S D C P T J K Pg N ^[1]
Type	Geological formation
Unit of	Dasheng Group
Overlies	Malanggou Formation
Lithology
Primary	Sandstone, siltstone, mudstone
Other	Conglomerate
Location
Region	Shandong
Country	China