Dreadnoughtus schrani
读音： dred-NAW-tus SHRAH-nye
Titanosauria
A giant titanosaur from the Late Cretaceous of southern Patagonia and the most complete giant sauropod known, with about 70% of its skeleton below the head. The type individual was still growing when it died.
- Giant
- Long necked
- Quadrupedal
- 时代
- 白垩纪· 坎潘阶
- 食性
- 植食性
- 体长
- 26 m
- 体重
- 22,000–59,300 kg
- 地点
- Santa Cruz Province, Argentina
快速问答
- Dreadnoughtus schrani有多大？
- Dreadnoughtus schrani体长约26 m。髋部高约3.5–4.2 m。体重约22–59.3 t。 (Lacovara et al. 2014; Paul 2016)
- Dreadnoughtus schrani生活在什么时候？
- Dreadnoughtus schrani生活在晚白垩世，约8400万至6600万年前。 (Lacovara et al. 2014; Paleobiology Database: Dreadnoughtus occurrences 2026)
- 在哪里发现过Dreadnoughtus schrani的化石？
- Dreadnoughtus schrani的化石发现于Cerro Fortaleza Formation (Santa Cruz Province)和Argentina。 (Lacovara et al. 2014; Bates et al. 2015)
- Dreadnoughtus schrani吃什么？
- Dreadnoughtus schrani是植食性。 (Lacovara et al. 2014; Bates et al. 2015)
- Dreadnoughtus schrani由谁命名，何时命名？
- Dreadnoughtus schrani由Kenneth J. Lacovara et al.于2014年描述。 (Lacovara et al. 2014)
- Dreadnoughtus schrani出现在《侏罗纪公园》里吗？
- 是的。Dreadnoughtus schrani出现在《侏罗纪世界3》 (2022)中。电影有不少虚构成分；本页将其与化石证据进行了对比。 (Wikipedia: Dinosaurs in Jurassic Park 2026; Bates et al. 2015)
本页内容
dred-NAW-tus SHRAH-nye
- 时代
- 白垩纪84–66 Ma
- 食性
- 植食性
- 体长
- 26 m
- 体重
- 22–59.3 t
- 产地
- Argentina
- 分类
- Titanosauria
- 命名
- 2014, Kenneth J. Lacovara et al.
概览
此内容目前仅提供英文版。
Dreadnoughtus schrani lived in southern Patagonia, Argentina, in the Late Cretaceous (Campanian-Maastrichtian). Kenneth Lacovara and colleagues named it in 2014 from two skeletons found on the east bank of the Río La Leona in Santa Cruz Province; they are kept at the Museo Padre Molina in Río Gallegos.
The holotype preserves about 45% of all the bones of a titanosaur skeleton and up to 70% of the postcranial elements, far more than any other giant titanosaur (Argentinosaurus: about 5%). Its bone histology shows the animal was still growing.
The describers estimated 59.3 tonnes from limb-bone circumference. Volumetric models by Bates et al. (2015) found this implausible and gave 22 to 38 tonnes, and Paul (2019) put it around 30 tonnes, so its mass is a textbook example of how much methods differ.
名称含义
"Dreadnought", Old English for "fearing nothing", for its size and after early-20th-century battleships; schrani honours Adam Schran, who supported the research (Lacovara et al. 2014).
生物学与证据
科学家对这种动物生活方式的看法，以及每种观点的证据有多充分。
生长
The Dreadnoughtus type specimen was still growing when it died.
证据等级：有力证据Its bone lacks the remodelled outer layer seen in fully grown sauropods.
支持 / 反对证据 · 1
支持证据
组织学 · Dreadnoughtus humerus histology
Unremodelled fibrolamellar bone in the outer cortex of the humerus.
标本： MPM-PV 1156
其他
Dreadnoughtus is the most complete giant titanosaur known.
证据等级：直接证据About 45% of the skeleton is known, against 15% for Futalognkosaurus and 5% for Argentinosaurus.
支持 / 反对证据 · 1
支持证据
生物力学模型 · Dreadnoughtus limb-scaling mass estimate
Humeral and femoral circumferences give about 59.3 t.
标本： MPM-PV 1156
Dreadnoughtus weighed about 59 tonnes.
证据等级：有争议The 59.3 t figure comes from a limb-bone equation. Volumetric models of the same skeleton give 22 to 38 t, and Paul (2019) about 30 t.
支持 / 反对证据 · 2
支持证据
生物力学模型 · Dreadnoughtus limb-scaling mass estimate
Humeral and femoral circumferences give about 59.3 t.
标本： MPM-PV 1156
反对证据
生物力学模型 · Dreadnoughtus volumetric models
Three volumetric reconstructions give 22.1, 27.7 and 38.2 t; masses above 40 t would need implausible densities and soft tissue.
标本： MPM-PV 1156
体型
- 体长
- 26 m
- 身高
- 3.8 m文献范围 3.5–4.2 m
- 体重
- 22,000–59,300 kg
（85.3 英尺）
依据 MPM-PV 1156
（12.5 英尺）
依据 MPM-PV 1156 (holotype, femur 1.91 m)
依据 MPM-PV 1156
时间线
时代： 坎潘阶 (83.6–72.1 Ma), 马斯特里赫特阶 (72.1–66 Ma), 晚白垩世 (100.5–66 Ma)
Campanian-Maastrichtian, about 84-66 Ma (Lacovara et al. 2014); PBDB lists the collection as Campanian (83.6-72.2 Ma).
产地
地层
- Cerro Fortaleza Formation · Santa Cruz Province
- Cerro Fortaleza, east bank of the Río La Leona, Santa Cruz · Cerro Fortaleza Formation · Santa Cruz Province · 位置为近似值
这些是发现化石的地点，而不是该动物生活的全部范围。
生态系统
生活于： Cerro Fortaleza
84–66 百万年前 · 泛滥平原
Late Cretaceous southern Patagonia, about 1,200 km south of the classic Neuquén dinosaur beds; little of the fauna has been described.
分类
- 演化支Dinosauria
- 演化支Saurischia
- 演化支Sauropodomorpha
- 演化支Sauropoda
- 演化支Macronaria
- 演化支Titanosauria
- 属Dreadnoughtus
- 种Dreadnoughtus schrani
分类地位： 有效
化石记录
| 编号 | 类型 | 收藏机构 | 发现年份 |
|---|---|---|---|
| MPM-PV 1156 | 正模标本 | Museo Regional Provincial Padre Manuel Jesús Molina (MPM) | — |
| MPM-PV 3546 | 副模标本 | Museo Regional Provincial Padre Manuel Jesús Molina (MPM) | — |
已发现的部分
正模标本: MPM-PV 1156
- 保存
- 部分保存
- 复原
- 未知 / 未记录
正模标本: MPM-PV 1156
按部位查看（表格）
| 部位 | 状态 |
|---|---|
| Skull | 部分保存 · Maxilla fragment. |
| Mandible | 未知 / 未记录 |
| Teeth | 部分保存 · One tooth. |
| Cervical vertebrae | 部分保存 |
| Dorsal vertebrae | 部分保存 |
| Sacrum | 保存 |
| Caudal vertebrae | 部分保存 · 32 caudal vertebrae. |
| Ribs | 部分保存 |
| Gastralia | 未知 / 未记录 |
| Scapula / shoulder girdle | 保存 |
| Humerus | 保存 |
| Forearm (radius / ulna) | 保存 |
| Hand (manus) | 未知 / 未记录 |
| Pelvis | 保存 |
| Femur | 保存 |
| Tibia / fibula | 保存 |
| Foot (pes) | 部分保存 · Right metatarsals I-II and pedal ungual I only. |
副模标本: MPM-PV 3546
按部位查看（表格）
| 部位 | 状态 |
|---|---|
| Skull | 未知 / 未记录 |
| Mandible | 未知 / 未记录 |
| Teeth | 未知 / 未记录 |
| Cervical vertebrae | 未知 / 未记录 |
| Dorsal vertebrae | 未知 / 未记录 |
| Sacrum | 保存 |
| Caudal vertebrae | 未知 / 未记录 |
| Ribs | 未知 / 未记录 |
| Gastralia | 未知 / 未记录 |
| Scapula / shoulder girdle | 未知 / 未记录 |
| Humerus | 未知 / 未记录 |
| Forearm (radius / ulna) | 未知 / 未记录 |
| Hand (manus) | 未知 / 未记录 |
| Pelvis | 保存 |
| Femur | 保存 |
| Tibia / fibula | 未知 / 未记录 |
| Foot (pes) | 未知 / 未记录 |
发现
- 命名年份
- 2014
- 命名者
- Kenneth J. Lacovara et al.
- 模式标本
- MPM-PV 1156
发现时间线
2014 · 正式命名
Lacovara et al. name Dreadnoughtus schrani
The most complete giant titanosaur is named in Scientific Reports.
人物：Kenneth J. Lacovara
2015 · 重要研究
Dreadnoughtus mass re-evaluated
Volumetric models cut the mass estimate to 22-38 t.
人物：Karl T. Bates
《侏罗纪公园》与《侏罗纪世界》中的形象
电影
- 侏罗纪世界3 (2022)
此内容目前仅提供英文版。
银幕形象
A giant long-necked herbivore seen several times in Dominion.
电影与化石对比
- It was huge, but its first headline mass has since been revised well downward.
电影名称仅用于识别。DinoDex 与《侏罗纪公园》/《侏罗纪世界》系列无任何关联，也未获其认可。 所有在电影中出现的恐龙
参考文献
- (2026). Paleobiology Database: Dreadnoughtus occurrences. The Paleobiology Database (paleobiodb.org), data service 1.2, accessed 2026-09-23. https://paleobiodb.org/data1.2/occs/list.txt?base_name=Dreadnoughtus&show=coords,paleoloc,strat,loc,ref&pgm=gplates（在新标签页中打开）
- (2026). Wikipedia: Dinosaurs in Jurassic Park. Wikipedia. https://en.wikipedia.org/wiki/Dinosaurs_in_Jurassic_Park（在新标签页中打开）
- Bates, K. T., Falkingham, P. L., Macaulay, S., Brassey, C. & Maidment, S. C. R. (2015). Downsizing a giant: re-evaluating Dreadnoughtus body mass. Biology Letters 11. doi:10.1098/rsbl.2015.0215（在新标签页中打开）
- Lacovara, K. J., Lamanna, M. C., Ibiricu, L. M., Poole, J. C., Schroeter, E. R., Ullmann, P. V., Voegele, K. K., Boles, Z. M., et al. (2014). A gigantic, exceptionally complete titanosaurian sauropod dinosaur from southern Patagonia, Argentina. Scientific Reports 4: 6196. doi:10.1038/srep06196（在新标签页中打开）
- Paul, G. S. (2016). The Princeton Field Guide to Dinosaurs (2nd edition). Princeton University Press.
- Paul, G. S. (2019). Determining the largest known land animal: a critical comparison of differing methods for restoring the volume and mass of extinct animals. Annals of Carnegie Museum 85(4): 335-358. doi:10.2992/007.085.0403（在新标签页中打开）