Haoling Formation | |
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Stratigraphic range: | |
Type | Geological formation |
Underlies | Shangdonggou Formation |
Overlies | Xiahedong Formation |
Lithology | |
Primary | Siltstone |
Other | Mudstone, Shale |
Location | |
Coordinates | 34°06′N112°30′E / 34.1°N 112.5°E |
Approximate paleocoordinates | 30°48′N126°12′E / 30.8°N 126.2°E |
Region | Henan Province |
Country | China |
Extent | Ruyang Basin |
The Haoling Formation is a Mesozoic geologic formation in the Ruyang Basin of Henan, Province, central China. Dinosaur remains are among the fossils that have been recovered from the formation.
The Haoling Formation was originally treated as part of the Mangchuan Formation and considered to be of Paleocene age before being recognized as Mesozoic in age. [1] [2] A 2012 paper divided the Mangchuan into the Xiahedong, Haoling, and Shangdonggou Formations, assigning the dinosaur-bearing horizon to the Haoling Formation and constraining the age of the Haoling as Aptian-Albian based on fieldwork and invertebrate and microfossil assemblages. [3]
Color key
| Notes Uncertain or tentative taxa are in small text; |
Ornithischians of the Haoling Formation | ||||||
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Genus | Species | Locality | Material | Notes | Images | |
Iguanodontia [4] | Indeterminate | Shaping Donggou, Liudan | Nine nearly articulated anteromiddle caudal vertebrae | An indeterminate iguanodontia. | ||
Zhongyuansaurus | Z. junchangi [5] | 300 miles east of Zhongwa Village (17 meters south of the road), Liudian | A single partial skeleton consists of a right mandible, 14 free caudal vertebrae and seven fused caudal vertebrae forming the club 'handle', ten haemal arches, four ribs, the left humerus, one metatarsal, and 41 osteoderms. | An ankylosaur | ![]() | |
Z. luoyangensis | Liufugou, Liudan | A partial skeleton consists of a nearly complete skull, fragments of the lower jaw, a cervical neural spine, dorsal vertebrae, caudal vertebrae, posterior caudal vertebral centra, fused distal caudal vertebrae, ribs, a humerus, both ischia, a pubis, and osteoderms | ![]() | |||
Sauropods of the Haoling Formation | ||||||
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Genus | Species | Locality | Material | Notes | Images | |
Huanghetitan | H. ruyangensis | Liufugou, Liudan | A partial skeleton consists of a nearly complete sacrum, ten proximal caudals, haemal arches, dorsal ribs, and an incomplete ischium. | A Somphospondyli sauropod. | ![]() | |
Ruyangosaurus | R. giganteus | Shengshuigou, Shaping village, | A set of postcrania consists of femur, tibia, and dorsal vertebrae. | A titanosaur. | ![]() | |
Xianshanosaurus [6] | X. shijiagouensis | Haoling Village, Liudian Town. | A partial skeleton consists of ten caudal vertebrae, a coracoid, a femur, and several ribs. | A Somphospondyli sauropod. | ![]() | |
Yunmenglong | Y. ruyangensis | Huamiaogou Village, Liudian | A set of postcrania consists of nine cervicals, a single dorsal, four caudals & a right femur. | A Somphospondyli sauropod. |
Theropods of the Haoling Formation | ||||||
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Genus | Species | Locality | Material | Notes | Images | |
Carcharodontosauridae [7] | Indeterminate | Haoling Village and Shijiagou quarry, Liudian | Several teeth. | An indeterminate Carcharodontosaur. | ||
Luoyanggia | L. liudianensis | Shijiagou quarry, Liudian | A partial skeleton | An oviraptorosaur. | ||
Ornithomimidae [8] | O. spp | Shijiagou quarry, Liudian | An ornithomimid. | |||
Spinosauridae | Indeterminate | Shijiagou quarry, Liudian | A spinosaurid. | |||