Biology of the sauropod dinosaurs: the evolution of gigantism.
Bottom Line: Scaling relationships between gastrointestinal tract size and basal metabolic rate (BMR) suggest that sauropods compensated for the lack of particle reduction with long retention times, even at high uptake rates.The extensive pneumatization of the axial skeleton resulted from the evolution of an avian-style respiratory system, presumably at the base of Saurischia.An avian-style respiratory system would also have lowered the cost of breathing, reduced specific gravity, and may have been important in removing excess body heat.
Affiliation: Steinmann Institute, University of Bonn, Germany. email@example.comShow MeSH
Related in: MedlinePlus
Mentions: In the remainder of this paper, we will approach the gigantism issue from the resource perspective. This perspective takes all constraints into account and aids in formulating hypotheses about how sauropod dinosaurs overcame them (Fig. 7).
Affiliation: Steinmann Institute, University of Bonn, Germany. firstname.lastname@example.org