[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]

Re: Largest Camarasaurus specimens

47t is high for Giraffatitan - I got 48 t using a (probably too high)
density of 0.8 kg/L. For Camarasaurus, being a bit more sturdy, I can
believe 80% of the weight of G. at a stretch. Thus, using a more
realistic density of 0.6 or 0.8 kg/L, you'd end up with at most 34 t.
Dr. Heinrich Mallison
Abteilung Forschung
Museum für Naturkunde - Leibniz-Institut
für Evolutions- und Biodiversitätsforschung
an der Humboldt-Universität zu Berlin
Invalidenstrasse 43
10115 Berlin
Office phone: +49 (0)30 2093 8764
Email: heinrich.mallison@gmail.com
Fere libenter homines id quod volunt credunt.
Gaius Julius Caesar

On Tue, May 22, 2012 at 11:38 PM, David Marjanovic
<david.marjanovic@gmx.at> wrote:
>>  Does any one have any references for the largest Camarasaurus
>>  specimens (especially C. supremus). I've heard size estimates of 23
>>  meters long and 47 tonnes
> I have no idea, but I can say with a fair amount of certainty that 47 tonnes
> for a 23-m-long animal that is not a whale is ludicrous. 10 t, OK; 20 t, OK;
> 30 t, if it's proportioned like a sumo wrestler, why not. 47 t? No way.
> I guess this figure was derived by measuring the water displacement of a
> commercial model that violated Holtz's First Rule of Skeletal Restoration*,
> using the rounded density of an unspecified lizard.
> * "If the skeleton doesn't fit inside the model, the model is wrong."