Sihetun, Yixian Member 3 (general): Late/Upper Barremian - Early/Lower Aptian, China
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
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Protarchaeopteryx robusta n. gen., n. sp.
Ji and Ji 1997
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Ji et al. 1998 | 1 specimen | ||||||||
| GMV/NGMC 2125 (5 measurements) | ||||||||||
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Caudipteryx zoui n. gen., n. sp.
Ji et al. 1998
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2 specimens | |||||||||
| NGMC 97-4-A (8 measurements) | ||||||||||
| see common names | ||||||||||
Geography
| Country: | China | State/province: | Liaoning |
| Coordinates: | 41.8° North, 120.7° East (view map) | ||
| Paleocoordinates: | 44.5° North, 122.5° East | ||
| Basis of coordinate: | based on political unit | ||
| Altitude: | 152 | ||
| Geographic resolution: | local area |
Time
| Period: | Cretaceous | Epoch: | Early/Lower Cretaceous |
| Stage: | Barremian | ||
| *Period: | Late/Upper Jurassic - Early/Lower Cretaceous | *Epoch: | Early/Lower Malm - Middle Gallic |
| *International age/stage: | Early/Lower Oxfordian - Late/Upper Albian | ||
| Key time interval: | Late/Upper Barremian - Early/Lower Aptian | ||
| Age range of interval: | 125.77000 - 119.50000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Geological group: | Jehol | Formation: | Yixian | Member: | Jianshangou |
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: authors use "Jiulongsong Member" of "Chaomidianzi Formation", but this is lower part of Yixian | |||||
Lithology and environment
| Primary lithology: | siltstone |
| Includes fossils? | Y |
| Environment: | lacustrine indet. |
Taphonomy
| Modes of preservation: | body,adpression,soft parts |
| Lagerst�tten type: | conservation |
| Size of fossils: | macrofossils |
| Preservation of anatomical detail: | excellent |
| Articulated whole bodies: | many |
| Associated major elements: | some |
Collection methods and comments
| Collection methods: | field collection |
| Collection size: | 3 individuals |
| Reason for describing collection: | biostratigraphic analysis |
Metadata
| Database number: | 10764 | ||
| Authorizer: | M. Carrano | Enterer: | M. Carrano |
| Modifier: | M. Carrano | Research group: | vertebrate |
| Created: | 2001-06-19 13:29:19 | Last modified: | 2023-11-07 12:53:23 |
| Access level: | the public | Released: | 2001-06-19 13:29:19 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 19421. | ETE | Q. Ji and S.-A. Ji. 1997. [Protarchaeopteryx gen. nov.—a new genus of Archaeopterygidae in China]. Chinese Geology 238(3):38-41 [M. Carrano/M. Carrano] |
Secondary references:
| 4006 | 5% 2820 | Q. Ji, P. J. Currie, M. A. Norell and S.-A. Ji. 1998. Two feathered dinosaurs from northeastern China. Nature 393:753-762 [M. Carrano/M. Carrano/M. Carrano] |
| 86337 | B. Jiang, F. T. Fürsich, and M. Hethke. 2012. Depositional evolution of the Early Cretaceous Sihetun Lake and implications for regional climatic and volcanic history in western Liaoning, NE China. Sedimentary Geology 257–260:31-44 [M. Carrano/M. Carrano] |