Lijiagou bonebed: Late/Upper Coniacian - Late/Upper Santonian, China
collected 1990, 2011
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
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Dinosauria indet.
(Owen 1842)
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204 specimens | |||||||||
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Hadrosauroidea indet.
(Huene 1954)
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33 specimens | |||||||||
| HGM 0006, 0018, 0023; YDENGP H001, H003, H005, H012-H027 | ||||||||||
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Reptilia
- Hadrosauridae
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Hadrosaurinae indet.
Lambe 1918
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3 specimens | |||||||||
| HGM 0062; YDENGP H002, H006 | ||||||||||
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Reptilia
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Sauropoda indet.
(Marsh 1878)
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195 specimens | |||||||||
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= Somphospondyli indet.
Wilson and Sereno 1998
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Mo et al. 2018 | |||||||||
| HY007, 009, 013, 015, 021, 040, 066, 071, 080 | ||||||||||
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Theropoda indet.
(Marsh 1881)
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7 specimens | |||||||||
| see common names | ||||||||||
Geography
| Country: | China | State/province: | Hubei | County: | Yunxian |
| Coordinates: | 33.0° North, 111.2° East (view map) | ||||
| Paleocoordinates: | 32.5° North, 103.9° East | ||||
| Basis of coordinate: | estimated from map | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Cretaceous | Epoch: | Late/Upper Cretaceous |
| 10 m.y. bin: | Cretaceous 6 | ||
| *Period: | Early/Lower Cretaceous | ||
| *International age/stage: | Barremian | ||
| Key time interval: | Late/Upper Coniacian - Late/Upper Santonian | ||
| Age range of interval: | 89.80000 - 83.60000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Majiacun | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: from middle of formation | |||||
Lithology and environment
| Primary lithology: | nodular,gray,red muddy,calcareous siltstone |
| Includes fossils? | Y |
| Lithology description: "grey and brick-red, organic-rich muddy siltstone with a considerable number of calcareous nodules" | |
| Environment: | "floodplain" |
Taphonomy
| Modes of preservation: | body |
| Degree of concentration: | concentrated |
| Size of fossils: | macrofossils |
| Preservation of anatomical detail: | good |
| Disassociated major elements: | all |
| Size sorting: | poor |
| Fragmentation: | frequent |
Collection methods and comments
| Collection methods: | selective quarrying,surface (in situ),mechanical,field collection |
| Reason for describing collection: | general faunal/floral analysis | Collection dates: | 1990s, 2011 |
| Collection method comments: Long Hao Institute of Geology and Paleontology | |
Metadata
| Also known as: | Meipu, Xichuan Basin | ||
| Database number: | 27026 | ||
| Authorizer: | M. Carrano | Enterer: | M. Carrano |
| Modifier: | M. Carrano | Research group: | vertebrate |
| Created: | 2002-11-13 15:08:43 | Last modified: | 2021-05-17 13:12:38 |
| Access level: | the public | Released: | 2002-11-13 15:08:43 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 58894. | Q.-W. Tan, H. Xing, Y.-G. Hu, L. Tan, and X. Xing. 2015. New hadrosauroid material from the Upper Cretaceous Majiacun Formation of Hubei Province, central China. Vertebrata PalAsiatica 53(3):245-264 [M. Carrano/M. Carrano] |
Secondary references:
| 87841 | J.-y. Mo, Q.-w. Tan, Y.-g. Hu, L. Tan, and X. Xing. 2018. [New material of juvenile sauropod from the Upper Cretaceous of the Xichuan Basin]. Acta Palaeontologica Sinica 57(4):504-512 [M. Carrano/M. Carrano] |