Ooh, this is a very interesting question. I'm not sure we can have an accurate estimate, because there are probably an absurd amount of factors including digestion rate, exact food eaten, metabolism, etc. It may be possible to do a very rough estimate by scaling up either a large herbivore such as an elephant, or an herbivorous reptile such as a Tegu. With so many unknown variables however, such an estimate is unlikely to be accurate at best, and scientifically disengenuous at worst. I would be very curious to know if any estimates have actually been published.
- Nickolas A. Brand
I would like to ask, if it can be roughly estimated, what amount of feces did giant titanosaurian sauropod produce daily? Would it be hundreds of kilogrammes or even more? Also, the same for giant theropods like Tyrannosaurus rex? Thank you in advance, Tom