Diplodocus
“double beam”A 26-metre whip-tailed giant known from some of the most complete sauropod skeletons
Overview
Diplodocus is an extinct genus of diplodocid sauropod dinosaurs known from the Late Jurassic of North America and Europe. The first fossils of Diplodocus were discovered in 1877 by S. W. Williston. The generic name, coined by Othniel Charles Marsh in 1878, is a Neo-Latin term derived from Greek διπλός (diplos) "double" and δοκός (dokos) "beam", in reference to the double-beamed chevron bones located in the underside of the tail, which were then considered unique.
Source: Wikipedia
Why it matters
- Andrew Carnegie sent casts of 'Dippy' to museums across Europe, making it the first dinosaur celebrity.
- Its tail could have cracked like a whip at supersonic speed, according to a 1997 model.
- Pencil-like teeth stripped leaves from branches; it probably swallowed stones to grind its food.
Classification & discovery
- Group
- Dinosaur · Sauropodomorph · Diplodocidae
- Parent taxon
- Diplodocinae
- Diet
- herbivore
- Environment
- terrestrial
- Life habit
- ground-dwelling, gregarious
- Named
- by Marsh in 1878
When it lived
157.9 – 143.1 million years ago · Jurassic, Cretaceous
Where it was found
North America · Countries with fossils: US
66 fossil occurrences in the Paleobiology Database · Rock formations: Morrison
Size

Length 26 m · Mass 15 t · Size estimates are editorial, from the literature; silhouettes from PhyloPic.
- Length
- 26 m
- Height
- 4.5 m
- Mass
- 15 t15,000 kg
- First appearance
- 157.9 Ma
- Last appearance
- 143.1 Ma
- Span of the fossil record
- 14.8 million years
- Fossil occurrences
- 66US
- Year named
- 1878Marsh
Sources
Image: ScottRobertAnselmo, CC BY-SA 3.0 · CC BY-SA 3.0 · image page
Life restoration: Fred Wierum, CC BY-SA 4.0 · CC BY-SA 4.0 · image page
Silhouette: Scott Hartman (PhyloPic) · license
Text: Wikipedia (CC BY-SA 4.0). Taglines, highlights and size estimates are editorial.