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Gravitational tolerance and size of Brachiosaurus brancai

✍ Scribed by Bruno Günther; Enrique Morgado; Karl Kirsch; Hanns-Christian Gunga

Publisher
John Wiley and Sons
Year
2002
Tongue
English
Weight
444 KB
Volume
5
Category
Article
ISSN
1435-1943

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✦ Synopsis

In an earlier study, Gunga et al. (1999) determined body size and body volume distribution by photogrammetry in sauropods from the Upper Jurassic in Tendaguru (Tanzania, East Africa). Specifically, they found a body mass of about 74,400 kg for a specimen of Brachiosaurus brancai. By means of dimensional analysis and a theory of biological similarity, moreover, it was possible to estimate the numerical value of the allometric exponent (b = -0.17) for gravitational tolerance (GmJx) of animals living on earth, which changes with the body mass. This theoretical exponent is close to Economos' empirical finding (b = -0.14). Our results show that there remains an unsolved contradiction between the theoretical assumptions for G, , , for the body mass of the largest fully terrestrial animals.

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