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Mamenchisaurus constructus
Taxonomy
Mamenchisaurus constructus was named by Young (1954). Its type specimen is IVPP AS V.790, a partial skeleton, and it is a 3D body fossil. Its type locality is Mamenchi Ferry, Yibin, which is in a Kimmeridgian/Tithonian fluvial sandstone in the Shaximiao Formation of China. It is the type species of Mamenchisaurus.
Synonymy list
| Year | Name and author |
|---|---|
| 1954 | Mamenchisaurus constructus Young p. 492 |
| 1958 | Mamenchisaurus constructus Young p. 3 fig. 3 |
| 1964 | Mamenchisaurus constructus Tatarinov p. 545 |
| 1970 | Mamenchisaurus constructus Steel p. 71 |
| 1977 | Mamenchisaurus constructus Rozhdestvensky p. 113 |
| 1980 | Mamenchisaurus constructus Charig p. 234 |
| 1983 | Mamenchisaurus constructus Dong et al. pp. 54-55 figs. Pl. 17:2 |
| 1984 | Mamenchisaurus constructus He p. 62 |
| 1990 | Mamenchisaurus constructus McIntosh p. 394 |
| 1992 | Mamenchisaurus constructus Dong p. 78 |
| 1994 | Mamenchisaurus constructus Russell and Zheng p. 2089 |
| 1996 | Mamenchisaurus constructus Zhang and Chen |
| 1998 | Mamenchisaurus constructus Dong p. 81 |
| 1999 | Mamenchisaurus constructus Martin-Rolland pp. 305-306 fig. 18 |
| 2002 | Mamenchisaurus constructus Ouyang and Ye pp. 98-99 |
| 2004 | Mamenchisaurus constructus Upchurch et al. p. 262 |
| 2007 | Mamenchisaurus constructus Naish and Martill p. 498 |
| 2008 | Mamenchisaurus constructus Lü et al. p. 21 |
| 2011 | Mamenchisaurus constructus Li et al. p. 24 |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
†Mamenchisaurus constructus Young 1954
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| Z. Dong et al. 1983 | A moderate-sized sauropod approximately 13 m in length. Cervical and dorsal pleurocoels are particularly large and centra are opisthocoelous. Cervical vertebrae are extremely large, dorsal spines are relatively flat and straight, and cervical ribs are distinctly grooved with wide and thin termini. Dorsal vertebrae are relatively laterally concave. The first six to seven caudals are deeply procoelous, but in the mid-series and posterior series are amphiplatyan. The caudal mid-series haemal arches are bifurcated but not large and have fused dorsal margins, unlike the opened morphology of Diplodocus. Hindlimbs are relatively thin and small. |
Measurements
No measurements are available
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| Source: g = genus, infrao = infraorder | |||||
| References: Marsh 1875, Peczkis 1995 | |||||
Age range: base of the Kimmeridgian to the top of the Tithonian or 154.80000 to 143.10000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Jurassic | China (Gansu) | Mamenchisaurus constructus (57770) | |
| Late/Upper Jurassic | China (Sichuan) | Mamenchisaurus constructus (57772) | |
| Kimmeridgian - Tithonian | China (Sichuan) | Mamenchisaurus constructus (type locality: 24864) |