The Xinlong Formation (sometimes called the "Napai Formation", or misspelt as "Napan Formation"[1]) is an Early Cretaceous geologic formation in Guangxi, southern China.[2]
| Xinlong Formation | |
|---|---|
| Stratigraphic range: ?Aptian-Albian ~ | |
| Type | Geological formation |
| Lithology | |
| Primary | Sandstone, mudstone |
| Other | Conglomerate, marl |
| Location | |
| Coordinates | 22°36′N 107°54′E / 22.6°N 107.9°E |
| Approximate paleocoordinates | 23°12′N 116°06′E / 23.2°N 116.1°E |
| Region | Guangxi |
| Country |  China |
  Xinlong Formation (China)  Xinlong Formation (Guangxi) | |
Dinosaur remains diagnostic to the genus level are among the fossils that have been recovered from the formation.[3]
Vertebrate paleofauna
editDinosaurs
edit| Dinosaurs of the Xinlong Formation | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
| Asiatosaurus[4] | A. kwangshiensis[4] | Teeth, three cervical vertebrae and ribs | Indeterminate sauropod | |||
| Datanglong[5] | D. guangxiensis | Last dorsal (back) vertebra (according to the descriptors the fourteenth), continues over the five sacral vertebrae, and ends with the second tail vertebra. The sacrum is attached to a left ilium with the upper parts of the left pubic bone and the left ischium, and one piece of the right ilium | A member of Carcharodontosauria | |||
| Fusuisaurus[6] | F. zhaoi[6] | Partial pelvis and caudal vertebrae | A titanosauriform | |||
| Liubangosaurus[7] | L. hei[7] | Fifth to ninth dorsal vertebrae | An eusauropod | |||
| Napaisaurus[8] | N. guangxiensis[8] | Right ilium and ischium | An iguanodontian | |||
| Prodeinodon[9] | P. kwangshiensis | Several teeth, fragmentary tibia, fragmentary fibula | Indeterminate theropod | |||
| Psittacosauridae?[8] | Indeterminate | Several different taxa of possible Psittacosaurid classification. | ||||
| Siamosaurus[10] | Indeterminate, possibly S. fusuiensis[10] | Four teeth | Spinosaurid originally known as "Sinopliosaurus" fusuiensis[11] | 
| ||
Color key
|
Notes Uncertain or tentative taxa are in small text; |
See also
editReferences
edit- ^ Mo, Jinyou; Buffetaut, Eric; Tong, Haiyan; Amiot, Romain; Cavin, Lionel; Cuny, Gilles; Suteethorn, Varavudh; Suteethorn, Suravech; Jiang, Shan (2015-07-02). "Early Cretaceous vertebrates from the Xinlong Formation of Guangxi (southern China): a review". Geological Magazine. 153 (1): 143–159. doi:10.1017/S0016756815000394. ISSN 0016-7568. S2CID 130076340.
- ^ Xinlong Formation at Fossilworks.org
- ^ Weishampel, et al. (2004). "Dinosaur distribution." Pp. 517-607.
- ^ a b Hou, L.H.; Yeh, H.K.; Zhao, X.J. (1975). "Fossil reptiles from Fusui, Kwangshi" (PDF). Vertebrata PalAsiatica. 13 (1): 24–33.
- ^ Mo, Jinyou; Zhou, Fusheng; Li, Guangning; Huang, Zhen; Cao, Chenyun (2014). "A new Carcharodontosauria (Theropoda) from the Early Cretaceous of Guangxi, Southern China". Acta Geologica Sinica (English Edition). 88 (4): 1051–1059. Bibcode:2014AcGlS..88.1051M. doi:10.1111/1755-6724.12272. S2CID 129386301.
- ^ a b Jinyou, MO; Wei, Wang; Zhitao, Huang; Xin, Huang; Xing, XU (2010). "A Basal Titanosauriform from the Early Cretaceous of Guangxi, China". Acta Geologica Sinica (English Edition). 80 (4): 486–489. doi:10.1111/j.1755-6724.2006.tb00267.x. S2CID 129846744.
- ^ a b Mo Jinyou, Xu Xing and Eric Buffetaut (2010). "A New Eusauropod Dinosaur from the Lower Cretaceous of Guangxi Province, Southern China". Acta Geologica Sinica (English Edition). 84 (6): 1328–1335. Bibcode:2010AcGlS..84.1328M. doi:10.1111/j.1755-6724.2010.00331.x. S2CID 140687733.
- ^ a b c Ji S, Zhang P (2021). "First new genus and new species of basal iguanodontian dinosaur (Ornithischia: Ornithopoda) from southern China". Acta Geoscientica Sinica.
- ^ Spencer G. Lucas; James I. Kirkland; John W. Estep, eds. (1998). Lower and Middle Cretaceous Terrestrial Ecosystems: Bulletin 14. New Mexico Museum of Natural History and Science. p. 6. Retrieved 2022-08-26.
- ^ a b Buffetaut, Eric; Suteethorn, Varavudh; Tong, Haiyan; Amiot, Romain (2008-09-01). "An Early Cretaceous spinosaurid from southern China". Geological Magazine. 145 (5): 745–748. Bibcode:2008GeoM..145..745B. doi:10.1017/S0016756808005360. S2CID 129921019.
- ^ Hou, L., Yeh, H. and Zhao, X. (1975). Fossil reptiles from Fusui, Kwangshi. Vertebrata PalAsiatica 13; 24-33
Bibliography
edit- Weishampel, David B.; Dodson, Peter; Osmólska, Halszka, eds. (2004). The Dinosauria (2nd ed.). Berkeley: University of California Press. ISBN 0-520-24209-2. Retrieved 2019-02-21.