A short Diplodocus list

Name: The Natural History Museum’s Dino Directory gives the name meaning as ‘double beam’. [NHM Directory] The name refers to double-beamed chevron bones under the tail. [NHM Dippy]
Kind of dinosaur: The same directory lists the type of dinosaur as a sauropod. [NHM Directory] The directory lists the diet as herbivorous. [NHM Directory]
Where: The directory says it is found in the USA. [NHM Directory] Skeletons of this dinosaur are found in the Morrison Formation in North America. [NHM Dippy]
When: On the directory, Diplodocus lived in the Late Jurassic, 152–145 million years ago. [NHM Directory]
Length, directory: The directory gives the length as 26.0 m. [NHM Directory]
Length, Dippy page: The same page says the animal Dippy is a replica of was 24 to 26 metres long and probably weighed up to around 15 tonnes. [NHM Dippy]
Length, current Carnegie mount: Taylor, Wedel and Moacdieh (2025) note that numerous divergent length measurements exist for this specimen, but that the current mount is about 26.1 m long based on photogrammetric and LIDAR models. [Taylor et al. 2025]
Weight, directory: The directory gives the weight as 15,000 kg. [NHM Directory]
Dippy: Dippy is a plaster-of-Paris replica of a Diplodocus carnegii, whose original skeleton is at the Carnegie Museum. [NHM Dippy] The London cast was unveiled for the first time on 12 May 1905. [NHM Dippy]

For the comparisons, and the figures that do not line up, use the length-and-scale desk.

Sources on this page