Contents

Xinlong Formation

Xinlong Formation
Stratigraphic range: ?Aptian-Albian ~120–100 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Type	Geological formation
Lithology
Primary	Sandstone, mudstone
Other	Conglomerate, marl
Location
Coordinates	22°36′N 107°54′E / 22.6°N 107.9°E / 22.6; 107.9
Approximate paleocoordinates	23°12′N 116°06′E / 23.2°N 116.1°E / 23.2; 116.1
Region	Guangxi
Country	China
Xinlong Formation (China) Show map of China Xinlong Formation (Guangxi) Show map of Guangxi

The Xinlong Formation (sometimes called the "Napai Formation", or misspelt as "Napan Formation"^[1]) is an Early Cretaceous geologic formationinGuangxi, southern China.^[2]

Dinosaur remains diagnostic to the genus level are among the fossils that have been recovered from the formation.^[3]

Vertebrate paleofauna[edit]

Dinosaurs[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	Atitanosauriform
Liubangosaurus[7]	L. hei[7]			Fifth to ninth dorsal vertebrae	Aneusauropod
Napaisaurus[8]	N. guangxiensis[8]			Right ilium and ischium	Aniguanodontian
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]

See also[edit]

• List of dinosaur-bearing rock formations
  • List of stratigraphic units with few dinosaur genera

References[edit]

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.