IVPP 9208-21 quarry, Mazongshan: Early/Lower Albian, China
collected 1992
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia
- Dromaeosauridae
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Dromaeosauridae indet.
Colbert and Russell 1969
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1 individual | |||||||||
Reptilia
- Troodontidae
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Sinornithoides sp.
Russell and Dong 1994
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1 individual | |||||||||
Reptilia
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Psittacosaurus mazongshanensis n. sp.
Xu 1997
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Xu 1997 | 1 individual | ||||||||
nomen dubium belonging to Psittacosaurus | ||||||||||
Archaeoceratops oshimai n. gen., n. sp.
Dong and Azuma 1997
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Dong and Azuma 1997 | 2 individuals | ||||||||
(1 measurement) | ||||||||||
Probactrosaurus mazongshanensis n. sp.
Lü 1997
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Lü 1997 | 19 specimens | ||||||||
recombined as Gongpoquansaurus mazongshanensis | ||||||||||
IVPP V.11333 (field no. 9208-21), 11334-1 to 18. | ||||||||||
Siluosaurus zhangqiani n. gen., n. sp.
Dong 1997
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Dong 1997 | 2 specimens | ||||||||
nomen dubium belonging to Ornithopoda | ||||||||||
Mesosuchia indet.
Huxley 1875
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Dong 1997 | 3 specimens | ||||||||
invalid subgroup of Mesoeucrocodylia | ||||||||||
see common names |
Geography
Country: | China | State/province: | Gansu | County: | Subei |
Coordinates: | 41.6° North, 97.6° East (view map) | ||||
Paleocoordinates: | 41.8° North, 93.9° East | ||||
Basis of coordinate: | estimated from map | ||||
Altitude: | 1400 meters | ||||
Geographic resolution: | outcrop |
Time
Period: | Cretaceous | Epoch: | Early/Lower Cretaceous |
Stage: | Albian | 10 m.y. bin: | Cretaceous 4 |
Key time interval: | Early/Lower Albian | ||
Age range of interval: | 113.00000 - 109.90000 m.y. ago |
Stratigraphy
Geological group: | Xinminbao | Formation: | Zhonggou | Member: | Upper Gray Beds |
Stratigraphic resolution: | group of beds | ||||
Stratigraphy comments: unnamed lower part of group; = Xinminpu Group. "middle gray unit" of formation.
Zhang et al. 2015: The palynomorph assemblages contain a large number of biostratigraphically significant palynomorphs, such as numerically abundant tricolpate and rare polyaperturate angiosperm pollen grains, which indicate an Early Albian age for the Zhonggou Formation |
Lithology and environment
Primary lithology: | fine,gray,red sandstone |
Includes fossils? | Y |
Lithology description: "red-gray fine-grained sediments" | |
Environment: | fluvial-lacustrine indet. |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils,mesofossils |
Spatial orientation: | random |
Preservation of anatomical detail: | variable |
Articulated whole bodies: | some |
Associated major elements: | some |
Disassociated major elements: | some |
Disassociated minor elements: | some |
Fragmentation: | frequent |
Encrustation: | none |
Temporal resolution: | time-averaged |
Spatial resolution: | parautochthonous |
Collection methods and comments
Collection methods: | selective quarrying,surface (float),surface (in situ),mechanical,field collection |
Reason for describing collection: | taxonomic analysis |
Museum repositories: | IVPP | Collection dates: | 1992 |
Collection method comments: Collected by the Sino-Japanese Silk Road Dinosaur Expedition. |
Metadata
Database number: | 45166 | ||
Authorizer: | M. Carrano | Enterer: | M. Carrano |
Modifier: | G. Varnham | Research group: | vertebrate |
Created: | 2004-10-08 12:22:56 | Last modified: | 2022-02-14 11:34:09 |
Access level: | the public | Released: | 2004-10-08 12:22:56 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
11755. | ETE | Z. Dong. 1997. On small theropods from Mazongshan area, Gansu Province, China. In Z. Dong (ed.), Sino-Japanese Silk Road Dinosaur Expedition. China Ocean Press, Beijing 13-18 [M. Carrano/M. Carrano/M. Carrano] |
Secondary references:
11761 | Z. Dong. 1997. On the crocodiles from the Mazongshan area, Gansu Province, China. In Z. Dong (ed.), Sino-Japanese Silk Road Dinosaur Expedition. China Ocean Press, Beijing 11-12 [M. Carrano/M. Carrano/M. Carrano] | |
11757 | ETE | Z. Dong. 1997. A small ornithopod from Mazongshan area, Gansu Province, China. In Z. Dong (ed.), Sino-Japanese Silk Road Dinosaur Expedition. China Ocean Press, Beijing 24-26 [M. Carrano/M. Carrano/M. Carrano] |
9501 | Z. Dong and Y. Azuma. 1997. On a primitive neoceratopsian from the Early Cretaceous of China. In Z. Dong (ed.), Sino-Japanese Silk Road Dinosaur Expedition. China Ocean Press, Beijing 68-89 [M. Carrano/M. Carrano/M. Carrano] | |
11758 | ETE | J. Lü. 1997. A new Iguanodontidae (Probactrosaurus mazongshanensis sp. nov.) from Mazongshan area, Gansu Province, China. In Z. Dong (ed.), Sino-Japanese Silk Road Dinosaur Expedition. China Ocean Press, Beijing 27-47 [M. Carrano/M. Carrano/M. Carrano] |
11827 | F. Tang, Z.-X. Luo, Z. Zhou, H.-L. You, J. A. Georgi, Z.-L. Tang, and X.-L. Wang. 2001. Biostratigraphy and palaeoenvironment of the dinosaur-bearing sediments in Lower Cretaceous of Mazongshan area, Gansu Province, China. Cretaceous Research 22(1):115-129 [M. Carrano/M. Carrano/M. Carrano] | |
11759 | ETE | X. Xu. 1997. A new psittacosaur (Psittacosaurus mazongshanensis sp. nov.) from Mazongshan area, Gansu Province, China. Sino-Japanese Silk Road Dinosaur Expedition, (Z. Dong (ed.), China Ocean Press, Beijing 48-67 [M. Carrano/M. Carrano/M. Carrano] |
70223 | H. You, E. M. Morschhauser, D. Li and P. Dodson. 2019. Introducing the Mazongshan Dinosaur Fauna. In H. You, P. Dodson, & E. M. Morschhauser (eds.), Auroraceratops rugosus (Ornithischia, Ceratopsia) from the Early Cretaceous of northwestern Gansu Province, China. Society of Vertebrate Paleontology Memoir 18. Journal of Vertebrate Paleontology 38(supplement):1-11 [M. Carrano/M. Carrano] | |
9500 | H.-L. You and P. Dodson. 2003. Redescription of neoceratopsian dinosaur Archaeoceratops and early evolution of Neoceratopsia. Acta Palaeontologica Polonica 48(2):261-272 [M. Carrano/M. Carrano/M. Carrano] | |
79839 | M. Zhang, L. Ji, B. Du, S. Dai, and X. Hou. 2015. Palynology of the Early Cretaceous Hanxia Section in the Jiuquan Basin, Northwest China: The discovery of diverse early angiosperm pollen and paleoclimatic significance. Palaeogeography, Palaeoclimatology, Palaeoecology 440:297-306 [P. Mannion/G. Varnham/G. Varnham] |