Sanlimiao: Middle Santonian, China
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
- Spheroolithidae
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Paraspheroolithus sp.
Zhao 1979
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| eggshell | ||||||||||
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Reptilia
- Phaceloolithidae
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Dendroolithus sanlimiaoensis n. sp.
Fang 1998
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1 individual | |||||||||
| clutch with 18 eggs | ||||||||||
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Reptilia
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Baryonychinae indet.
(Charig and Milner 1986)
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Hone et al. 2010 | 1 specimen | ||||||||
| tooth (XMDFEC V0010) and casts (IVPP FV* 1786) | ||||||||||
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= Theropoda indet.
Marsh 1881
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Barker et al. 2023 | |||||||||
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unclassified
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Scoyenia sp.
White 1929
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Hone et al. 2010 | |||||||||
| trace | ||||||||||
| see common names | ||||||||||
Geography
| Country: | China | State/province: | Henan | County: | Xixia |
| Coordinates: | 33.3° North, 111.5° East (view map) | ||||
| Paleocoordinates: | 32.5° North, 103.8° East | ||||
| Basis of coordinate: | based on nearby landmark | ||||
| Geographic resolution: | hand sample |
Time
| Period: | Cretaceous | Epoch: | Late Cretaceous |
| Stage: | Santonian | 10 m.y. bin: | Cretaceous 6 |
| Key time interval: | Middle Santonian | ||
| Age range of interval: | 86.3 - 83.6 m.y. ago |
Stratigraphy
| Formation: | Majiacun | ||||
| Stratigraphy comments: "The bed from which the fossil was recovered is in the mid-section of the formation, so although the formation spans the Late Coniacian through to the Late Santonian...the tooth is likely from the Middle Santonian" |
Lithology and environment
| Primary lithology: | siltstone |
| Secondary lithology: | calcareous sandstone |
| Lithology description: "The tooth bearing beds are a set of light purple and red muddy siltstones and fine calcareous sandstone." | |
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection excludes: | all macrofossils |
| Collection methods: | field collection |
| Reason for describing collection: | taxonomic analysis |
| Collection method comments: Xixia Museum of Dinosaur Fossil Eggs of China collection | |
| Taxonomic list comments:"The Majiacun Formation has also yielded dinosaur eggs, including Dendroolithus and Paraspheroolithus, and invertebrate traces (Scoyenia)....Although dinosaur skeletal remains have been recovered from this formation, they have yet to be described." | |
Metadata
| Also known as: | Xixia Basin | ||
| Database number: | 97943 | ||
| Authorizer: | M. Carrano | Enterer: | M. Oreska, M. Carrano |
| Modifier: | M. Carrano | Research group: | vertebrate |
| Created: | 2010-09-09 08:31:36 | Last modified: | 2016-05-17 16:29:04 |
| Access level: | the public | Released: | 2010-09-09 08:31:36 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 59172. | S.-q. Zhou and Z.-j. Feng. 2002. [Studies on the occurrence beds of Oölithus and their relations to the upper-lower boundarues in Henan province]. Resources Survey & Environment 23(1):68-76 [M. Carrano/M. Carrano] |
Secondary references:
| 85046 | C. T. Barker, D. Naish, and N. J. Gostling. 2023. Isolated tooth reveals hidden spinosaurid dinosaur diversity in the British Wealden Supergroup (Lower Cretaceous). PeerJ 11:e15453:1-40 [M. Carrano/M. Carrano] | |
| 33855 | ETE | D. W. E. Hone, X. Xu, and D.-Y. Wang. 2010. A Probable Baryonychine (Theropoda: Spinosauridae) Tooth from the Upper Cretaceous of Henan Province, China. Vertebrata PalAsiatica 48(1):19-26 [M. Carrano/M. Oreska] |
| 59122 | X. Liang, S. Wen, D. Yang, S. Zhou, and S. Wu. 2009. Dinosaur eggs and dinosaur egg-bearing deposits (Upper Cretaceous) of Henan Province, China: Occurrences, palaeoenvironments, taphonomy and preservation. Progress in Natural Science 19(11):1587-1601 [M. Carrano/M. Carrano] |