I'm not sure if you're looking for the length at the widest point or an averaged width, but here are the average measurements for the species:
Average measurements (in mm): coracoid length 388.4, femur length 1555.5, femur circumference 560.0, fibula length 1087.0, humerus length 1044.4, humerus circumference 454.8, radius length 795.9, radius circumference 254.5, scapula length 1217.2, scapula width 228.0, tibia length 1035.1, tibia circumference 390.0, ulna length 836.8, ulna circumference 290.0
Source: Paleobiology Database
That is the correct spelling of "diplodocus" (a large sauropod of the genus Diplodocus).
It depends. If Seismosaurus hallorum proves to be really a Diplodocus, than that would be the longest known specimen, with a length of about 33 meters. Otherwise, the longest known Diplodocus is about 27-30 meters long.
it has a long neck
Diplodocus does not belong. It was a sauropod and an herbivore. The other three were theropods and were carnivores.
A diplodocus is actually a platypus that lives in the ocean.
diplodocus is longer but brachiosauras is taller
Most paleontologists think that Diplodocus was a gentle herbivore.
Diplodocus was a long-necked whip-tailed dinosaur measuring about 90 feet long with a 26 foot long neck and a 45 foot long tail. It could reach up to 35 115 feet tall, and over 20 ft of that was its neck.
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Diplodocus was a huge dinosaur. Huge animals like them do not use shelter.
Diplodocus at Large - 1953 was released on: USA: 1953
The diplodocus lived 150 million years ago in the late Jurassic period.