Anchisauria Dinosauria Eusaurischia Eusauropoda Eutitanosauria Gravisauria Late Cretaceous Lithostrotia Macronaria Massopoda Neosauropoda Plateosauria Saurischia Sauropoda Sauropodiformes Sauropodomorpha Somphospondyli South America Titanosauria Titanosauriformes

Epachthosaurus sciuttoi

Dinosaur: Epachthosaurus sciuttoi

Cretaceous: 100.5–93.9 Ma

TRIASSIC

JURASSIC

CRETACEOUS

252

201

145

Type: Sauropod

*Length:**	12.7 m	41.7 ft
*Weight:**	4.3 tons	9,480 lb

ESR: 3.5 / 4 (estimated size reliability)
*The largest known specimen

Area: South America

Period

Epoch: Late Cretaceous
Stage: Cenomanian
Years: 100.5–93.9 Ma

Details

Status: valid
Author: Powell
Year: 1990

Distribution

Area: South America
Country: Argentina
Region: Chubut
Formation: Bajo Barreal

Classification

Dinosauria
Saurischia
Eusaurischia
Sauropodomorpha
Plateosauria
Massopoda
Sauropodiformes
Anchisauria
Sauropoda
Gravisauria
Eusauropoda
Neosauropoda
Macronaria
Titanosauriformes
Somphospondyli
Titanosauria
Eutitanosauria
Lithostrotia

Sources

Material: Three individuals (include large part of skeleton).
References: Martínez et al. (2004). An articulated specimen of the basal titanosaurian (Dinosauria: Sauropoda) Epachthosaurus sciuttoi from the early Late Cretaceous Bajo Barreal Formation of Chubut Province, Argentina.