List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
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Mamenchisaurus hochuanensis n. sp.
Chao 1965
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1 individual | |||||||||
| CCG V 20401 | ||||||||||
| see common names | ||||||||||
Geography
| Country: | China | State/province: | Sichuan | County: | Hechuan |
| Coordinates: | 30.1° North, 103.8° East (view map) | ||||
| Paleocoordinates: | 29.8° North, 108.4° East | ||||
| Basis of coordinate: | based on nearby landmark | ||||
| Altitude: | 423 meters | ||||
| Geographic resolution: | small collection |
Stratigraphy
| Geological group: | Chongqing | Formation: | Shaximiao | Member: | Upper |
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: Several radiometric ages have been reported for the Shaximiao Formation, including 167 Ma or 172 Ma (Zong and Shi, 1997), 167–172 Ma or 178–169 Ma (Gou et al., 2000), 163±3 Ma (Li et al., 2010), 160±4 Ma (Luo et al., 2014), 158±7 Ma (Qian et al., 2016), and 159±2 Ma (Wang et al., 2018). However, more recent studies suggest an older age; Dai et al. 2022 reported a maximum depositional age for the bone-bearing layers of the lower member of the Shaximiao formation to be Bjaocan. Zhou et al. 2022 also supported a late Middle Jurassic age for the Shaximiao Formation (Bathonian-Callovian). | |||||
Lithology and environment
| Primary lithology: | red "siliciclastic" |
| Includes fossils? | Y |
| Environment: | fluvial indet. |
Taphonomy
| Modes of preservation: | body |
| Degree of concentration: | dispersed |
| Size of fossils: | macrofossils |
| Preservation of anatomical detail: | good |
| Articulated whole bodies: | all |
| Fragmentation: | occasional |
| Temporal resolution: | snapshot |
Collection methods and comments
| Collection methods: | selective quarrying,mechanical,field collection |
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | IVPP | Collection dates: | 1957 |
| Collection method comments: discovered by Petroelum Geology Dept. of Sichuan province | |
Metadata
| Also known as: | Ho Chuan, Hechuan, Taihe | ||
| Database number: | 53662 | ||
| Authorizer: | M. Carrano | Enterer: | M. Carrano |
| Modifier: | M. Carrano | Research group: | vertebrate |
| Created: | 2005-09-13 11:29:18 | Last modified: | 2022-10-11 14:26:46 |
| Access level: | the public | Released: | 2005-09-13 11:29:18 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 63565. | S. Chao. 1965. Wǒguó de dà kǒnglóng yī héchuān mǎmén xī lóng [China’s largest dinosaur—Hehchuan-Mamenxian dragon]. Sheng wu xue tong bao [Bulletin of Biology] 1965(4):35-37 [M. Carrano/M. Carrano] |
Secondary references:
| 65178 | Anonymous. 1965. China's largest fossil dinosaur. China Reconstructs 14(8):33 [M. Carrano/M. Carrano] | |
| 63686 | Anonymous. 1965. Biggest dinosaur fossil ever found in China. Peking Review 8(24):27 [M. Carrano/M. Carrano] | |
| 58575 | Z. Dong. 1997. Chinese dinosaurs. In P. J. Currie & K. Padian (ed.), Encyclopedia of Dinosaurs 118-124 [M. Carrano/M. Carrano] | |
| 36736 | ETE | Z. Dong. 1998. On Asiatic sauropods and their phylogenetic relationships. In A. M. G. de Carvalho, A. M. Andrade, V. F. dos Santos, J. Cascalho, R. Taborda, (eds.), I Encontro Internacional sobre Paleobiologia dos Dinossáurios. Museu Nacional de História Natural, Lisboa 79-88 [M. Carrano/M. Carrano/M. Carrano] |
| 17258 | ETE | Z. Dong, S. Zhou, and H. Zhang. 1983. [Dinosaurs from the Jurassic of Sichuan]. Palaeontologica Sinica, New Series C, Whole Number 162(23):1-136 [M. Carrano/M. Carrano] |
| 14475 | ETE | V. Martin-Rolland. 1999. Les sauropodes chinois [The Chinese sauropods]. Revue Paléobiologie, Genève 18(1):287-315 [M. Carrano/M. Carrano/M. Carrano] |
| 82845 | G. Peng, Y. Ye, Y. Gao, C. Shu, and S. Jiang. 2005. Zìgòng dìqū zhū luó jì kǒnglóng dòngwù qún [Jurassic Dinosaur Faunas in Zigong]. 1-236 [M. Carrano/M. Carrano] | |
| 63776 | I. Voichin. 1966. Dinosaurul Mamenchisaurus hochuanensis [The dinosaur Mamenchisaurus hochuanensis]. Natura. Seria Biologie 18(3):94 [M. Carrano/M. Carrano/S. Bruning] | |
| 15609 | ETE | C.-C. Young and H. C. Chao. 1972. [Mamenchisaurus hochuanensis sp. nov.]. Institute of Vertebrate Palaeontology and Palaeoanthropology Monographs, Series A 8:1-30 [M. Carrano/M. Carrano] |
| 46057 | X. Zhao. 1985. [The Jurassic Reptilia]. In S.-e. Wang, Z. Cheng & N. Wang (eds.), [The Jurassic System of China. Stratigraphy of China, No. 11] 286-290 [M. Carrano/M. Carrano/M. Carrano] |