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 | |
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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]
Dinosaurs of the Xinlong Formation | ||||||
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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
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Notes Uncertain or tentative taxa are in small text; |