Xinlong Formation
Geologic formation in Guangxi, China
From Wikipedia, the free encyclopedia
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 | 22.6°N 107.9°E |
| Approximate paleocoordinates | 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
Dinosaurs
| 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 Carcharodontosaurid | |||
| 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] | ![](#/media/File:"Sinopliosaurus"_fusuiensis_by_PaleoGeek.png) | ||
Color key
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Notes Uncertain or tentative taxa are in small text; |