Genus
Valid Extinct

Suuwassea

Harris and Dodson 2004

Suuwassea is a genus of dicraeosaurid sauropod dinosaur found in Upper Jurassic strata of the Morrison Formation, located in southern Carbon County, Montana, United States. The fossil remains were recovered in a series of expeditions during a period spanning the years 1999 and 2000 and were described by J.D. Harris and Peter Dodson in 2004. They consist of a disarticulated but associated partial skeleton, including partial vertebral series and limb bones.

Temporal range
Triassic
Jurassic
Cretaceous
Paleogene
Neogene
252 201 145 66 0 Ma
PBDB occurrences
2
Group
Dinosaures
Herbivore Ground dwelling, gregarious Terrestrial
Suuwassea
click to enlarge
Reconstructions of diplodocoid skulls used in this analysis. Reconstructions of Nigersaurus and Diplodocus modified from [10] and [34], respectively. All other reconstructions based on material listed in Table S1. Skulls scaled to equivalent anteroposterior lengths. © John A. Whitlock · CC BY 2.5 · Wikimedia
PBDB ↗ Wikipedia ↗
Classification
Dinosauria Unranked clade
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Saurischia Unranked clade
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Sauropodomorpha Unranked clade
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Massopoda Unranked clade
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Sauropodiformes Unranked clade
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Sauropoda Unranked clade
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Gravisauria Unranked clade
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Eusauropoda Unranked clade
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Neosauropoda Unranked clade
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Diplodocoidea Unranked clade
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Diplodocimorpha Unranked clade
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Flagellicaudata Unranked clade
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Dicraeosauridae Unranked clade
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Suuwassea Genus
Measurements
Length
16,2 m ⓘ
Suuwassea emilieae
Mass
6 900 kg ⓘ
Suuwassea emilieae
Fossil sites 2 geolocated sites
Distribution
Top countries
🇺🇸 United States
2
Geological formations
Morrison
2
Temporal distribution
Tithonian (149.2–143.1 Ma)
1
Kimmeridgian (154.8–149.2 Ma)
1
Species (1)
Suuwassea emilieae 152 Ma
Images 2
Bibliography
Original description
J. D. Harris and P. Dodson. 2004. A new diplodocoid sauropod dinosaur from the Upper Jurassic Morrison Formation of Montana, USA. Acta Palaeontologica Polonica 49(2):197-210
Bibliography (2)
D. Richmond. 2023. Stratigraphy, sedimentology, and paleoclimatic proxies of the Upper Jurassic Morrison Formation of central Montana. Geology of the Intermountain West 10(16867):223–276 DOI ↗
J. D. Harris and P. Dodson. 2004. A new diplodocoid sauropod dinosaur from the Upper Jurassic Morrison Formation of Montana, USA. Acta Palaeontologica Polonica 49(2):197-210