However , from the modeling a new possibility emerged and that is that gastroliths may have helped prevent rolling in animals like Muraenosaurus .
Observed masses of stone collected from plesiosaur stomachs are far lower than the modeled mass required to effect buoyancy .
From the modeling a new possibility emerged and that is that gastroliths may have helped prevent rolling in animals like Muraenosaurus .
Observed masses of stone collected from plesiosaur stomachs are far lower than the modeled mass required to effect buoyancy .