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Diplodocus, the long sauropod

A very long dinosaur with a short list of agreed figures

Diplodocus is a Late Jurassic sauropod from North America, famous for its neck, its whip-like tail, and the plaster celebrity known as Dippy. Open the length-and-scale desk to put museum figures next to a 2025 measurement of the Carnegie mount, and to keep the numbers labelled when they do not agree.

Open the desk Meet Dippy

A side view of a long Diplodocus skeleton mounted among ferns and trees in a museum hall, with the neck raised and the tail stretching away to the right
The mounted Carnegie Diplodocus in the Dinosaurs in Their Time gallery at the Carnegie Museum of Natural History, Pittsburgh, photographed on 30 January 2011. The mount is a composite of CM 84, CM 94 and CM 307, not a single complete skeleton.James St. John · CC BY 2.0
A black-and-white 1905 photograph of a crowded museum gallery, looking along the tail of a Diplodocus cast toward a speaker and an audience in Edwardian dress
The presentation of the first Diplodocus replica to the trustees of the Natural History Museum, London, on 12 May 1905, with Lord Avebury speaking. The photograph looks along the tail and hips of the newly unveiled cast.Unknown photographer · Public Domain

The London cast was unveiled for the first time on 12 May 1905. [NHM Dippy] Dippy is one of 10 replicas of the original D. carnegii in museums around the world, including Paris, Berlin, Vienna, and Moscow. [NHM]

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