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As with the related genus Barosaurus, the very long neck of Diplodocus is the source of much controversy among scientists. A 1992 Columbia University study of diplodocid neck structure indicated that the longest necks would have required a 1.6-ton heart – a tenth of the animal's body weight.
Dippy is a composite Diplodocus skeleton in Pittsburgh's Carnegie Museum of Natural History, and the holotype of the species Diplodocus carnegii.It is considered the most famous single dinosaur skeleton in the world, due to the numerous plaster casts donated by Andrew Carnegie to several major museums around the world at the beginning of the 20th century.
Diplodocus, depicted with spines limited to the mid-line of the back. Diplodocids were generally large animals, even by sauropod standards. Thanks to their long necks and tails, diplodocids were among the longest sauropods, with some species such as Supersaurus vivianae and Diplodocus hallorum estimated to have reached lengths of 30 meters (100 ft) or more. [3]
They represent only 5% of the total inscriptions discovered and mostly read from right to left (similar to the Phoenician alphabet). The southern scripts include: the Espanca script, known from a single tablet and recognized as the earliest attestation of an alphabetical order among the Paleohispanic scripts.
The largest of the ants, and the heaviest species of the order, are the females of the African Dorylus helvolus, reaching a length of 5.1 cm (2.0 in) and a weight of 8.5 g (0.30 oz). [1] The ant that averages the largest for the mean size within the whole colony is a ponerine ant, Dinoponera gigantea , from South America, averaging up to 3.3 cm ...
Neosauropoda is a clade within Dinosauria, coined in 1986 by Argentine paleontologist José Bonaparte and currently described as Saltasaurus loricatus, Diplodocus longus, and all animals directly descended from their most recent common ancestor.
Dinosaurs show some of the most extreme variations in size of any land animal group, ranging from tiny hummingbirds, which can weigh as little as two grams, to the extinct titanosaurs, such as Argentinosaurus and Bruhathkayosaurus [1] which could weigh as much as 50–130 t (55–143 short tons).
The weight of Amphicoelias fragillimus was estimated at 122.4 metric tons with lengths of up to nearly 60 meters [21] but 2015 research argued that these estimates were based on a diplodocid rather than the more modern rebbachisaurid, suggesting a much shorter length of 35–40 meters with mass between 80–120 tons. [22]