Lufeng Formation
{{Short description|Geological Formation in China}}
{{Infobox rockunit
| name = Lufeng Formation
| period = Sinemurian
| age = Hettangian-Pliensbachian
~{{fossilrange|201|183}}
| image =
| imagesize =
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| type = Geological formation
| prilithology = Siltstone
| otherlithology = Sandstone
| unitof =
| subunits = Shawan & Zhangjia'ao Members
| underlies = Chuanjie Formation
| overlies = Precambrian slate basement
| thickness = over {{Convert|300|m|ft|-1}}
| area =
| map = {{Location map+ | China#Yunnan
| relief = 1
| width = 250
| float = center
| places =
{{Location map~ | China#Yunnan
| lat_deg = 25.1
| lon_deg = 102.1
| mark = Blue pog.svg
| marksize = 12
}}
}}
| map_caption =
| location =
| coordinates = {{coord|25.0|N|102.1|E|display=inline,title}}
| paleocoordinates = {{coord|34.3|N|104.6|E|display=inline}}
| region = Yunnan
| country = China
| extent = Yunnan Basin
| namedfor =
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| thickness_ts =
}}
The Lufeng Formation (formerly Lower Lufeng Series) is a Lower Jurassic sedimentary rock formation found in Yunnan, China. It has two units: the lower Dull Purplish Beds/Shawan Member are of Hettangian age, and Dark Red Beds/Zhangjia'ao Member are of Sinemurian age.Luo, Z., and X.-C. Wu. 1994. The small tetrapods of the Lower Lufeng Formation, Yunnan, China; pp. 251–270 in N. C. Fraser and H.-D.Sues (eds.), In the Shadow of the Dinosaurs. Cambridge University Press, New York It is known for its fossils of early dinosaurs. The Dull Purplish Beds have yielded the possible therizinosaur Eshanosaurus, the possible theropod Lukousaurus, and the "prosauropods" "Gyposaurus" sinensis, Lufengosaurus, Jingshanosaurus, and Yunnanosaurus. Dinosaurs discovered in the Dark Red Beds include the theropod Sinosaurus triassicus, the "prosauropods" "Gyposaurus", Lufengosaurus, and Yunnanosaurus, indeterminate remains of sauropods, and the early armored dinosaurs Bienosaurus and Tatisaurus.Weishampel, et al. 2004.
Paleofauna
= Rhynchocephalians =
| class="wikitable" style="margin:auto; width:100%;" |
| colspan="7" style="text-align:center;" |Rhynchocephalians reported from the Lufeng Formation |
|---|
| Genus
! Species ! Location ! Stratigraphic position ! Material ! Notes |
| ClevosaurusJones MEH. 2006 [https://www.researchgate.net/publication/230865919_The_Early_Jurassic_clevosaurs_from_China_Diapsida_Lepidosauria The Early Jurassic clevosaurs from China (Diapsida: Lepidosauria).] New Mex. Museum Nat. Hist. Sci. Bull. 37, 548–562.
| Indeterminate | Yunnan | |The three named species do not display any autapomorphic characters and should be considered indeterminate within the genus. Only record of rhynchocephalians from Asia. |
=Crurotarsans=
| class="wikitable" style="margin:auto; width:100%;" |
| colspan="7" style="text-align:center;"|Crurotarsans reported from the Lufeng Formation |
|---|
| Genus
! Species ! Location ! Stratigraphic position ! Material ! Notes |
| Dianchungosaurus"48.3 Yunnan, People's Republic of China; 2. Dark Red Beds of the Lower Lufeng Series," in Weishampel, et al. (2004). Page 534.
| | | | | Formerly considered an ornithopod dinosaur. |
=Ornithischians=
Indeterminate ornithopod remains Yunnan. Dark Red Beds.
=Sauropodomorphs=
{{paleobiota-key-compact}}
=Theropods=
=Cynodonts=
See also
References
{{reflist}}
= Bibliography =
- {{cite journal |last=Barrett |first=P.M. |author2=Xu X. |year=2005 |title=Reassessment of Dianchungosaurus lufengensis Yang, 1982, an enigmatic reptile from the Lower Lufeng Formation (Lower Jurassic) of Yunnan Province, People's Republic of China |journal=Journal of Paleontology |volume=79 |issue=5 |pages=981–986 |doi=10.1666/0022-3360(2005)079[0981:ARODLY]2.0.CO;2}}
- Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. 861 pp. {{ISBN|0-520-24209-2}}.
Category:Geologic formations of China