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

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.

Fossil content

Two types of sauropod tracks, resembling Parabrontopodus and Brontopodus respectively, are known. There are also tetradactyl ornithischian tracks, possibly left by Psittacosaurus.^[1]

Color key

Taxon	Reclassified taxon	Taxon falsely reported as present	Dubious taxon or junior synonym	Ichnotaxon	Ootaxon	Morphotaxon

Notes
Uncertain or tentative taxa are in small text; ~~crossed out~~ taxa are discredited.

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

References

^ ^a ^b Xing, Lida; Lockley, Martin G.; Marty, Daniel; Klein, Hendrik; Buckley, Lisa G.; McCrea, Richard T.; Zhang, Jianping; Gierliński, Gerard D.; Divay, Julien D.; Wu, Qingzi (October 2013). "Diverse dinosaur ichnoassemblages from the Lower Cretaceous Dasheng Group in the Yishu fault zone, Shandong Province, China". Cretaceous Research. 45: 114–134. Bibcode:2013CrRes..45..114X. doi:10.1016/j.cretres.2013.07.009.
^ ^a ^b Li, Rihui (2005). "A new ichnotaxon of fossil bird track from the Early Cretaceous Tianjialou Formation (Barremian-Albian), Shandong Province, China". Chinese Science Bulletin. 50 (11): 1149. Bibcode:2005ChSBu..50.1149L. doi:10.1360/982004-823. ISSN 1001-6538.
^ ^a ^b Li, Rihui; Lockley, Martin G.; Makovicky, Peter J.; Matsukawa, Masaki; Norell, Mark A.; Harris, Jerald D.; Liu, Mingwei (19 October 2007). "Behavioral and faunal implications of Early Cretaceous deinonychosaur trackways from China". Naturwissenschaften. 95 (3): 185–191. doi:10.1007/s00114-007-0310-7. ISSN 0028-1042. PMID 17952398.
^ Lockley, Martin G.; Kim, Jeong Yul; Kim, Kyung Soo; Kim, Sam Hyang; Matsukawa, Masaki; Rihui, Li; Jianjun, Li; Yang, Seong-Young (February 2008). "Minisauripus―the track of a diminutive dinosaur from the Cretaceous of China and South Korea: implications for stratigraphic correlation and theropod foot morphodynamics". Cretaceous Research. 29 (1): 115–130. Bibcode:2008CrRes..29..115L. doi:10.1016/j.cretres.2007.04.003.

[:2-1] Xing, Lida; Lockley, Martin G.; Marty, Daniel; Klein, Hendrik; Buckley, Lisa G.; McCrea, Richard T.; Zhang, Jianping; Gierliński, Gerard D.; Divay, Julien D.; Wu, Qingzi (October 2013). "Diverse dinosaur ichnoassemblages from the Lower Cretaceous Dasheng Group in the Yishu fault zone, Shandong Province, China". Cretaceous Research. 45: 114–134. Bibcode:2013CrRes..45..114X. doi:10.1016/j.cretres.2013.07.009.

[:0-2] Li, Rihui (2005). "A new ichnotaxon of fossil bird track from the Early Cretaceous Tianjialou Formation (Barremian-Albian), Shandong Province, China". Chinese Science Bulletin. 50 (11): 1149. Bibcode:2005ChSBu..50.1149L. doi:10.1360/982004-823. ISSN 1001-6538.

[:1-3] Li, Rihui; Lockley, Martin G.; Makovicky, Peter J.; Matsukawa, Masaki; Norell, Mark A.; Harris, Jerald D.; Liu, Mingwei (19 October 2007). "Behavioral and faunal implications of Early Cretaceous deinonychosaur trackways from China". Naturwissenschaften. 95 (3): 185–191. doi:10.1007/s00114-007-0310-7. ISSN 0028-1042. PMID 17952398.

[4] Lockley, Martin G.; Kim, Jeong Yul; Kim, Kyung Soo; Kim, Sam Hyang; Matsukawa, Masaki; Rihui, Li; Jianjun, Li; Yang, Seong-Young (February 2008). "Minisauripus―the track of a diminutive dinosaur from the Cretaceous of China and South Korea: implications for stratigraphic correlation and theropod foot morphodynamics". Cretaceous Research. 29 (1): 115–130. Bibcode:2008CrRes..29..115L. doi:10.1016/j.cretres.2007.04.003.

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