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Re: Gastric stones of dinosaurs were not for milling food !
John Scanlon writes:
Take-home message: no evidence for a gizzard in non-avians, and incidental
ingestion may explain all other cases of gastroliths (including in
Surely gastroliths in living crocs are well studied? Crocs will go out of
their way to collect stones from specific sources, sometimes well outside of
their usual territories.
Or does the paper suggest that croc gastroliths are purely for buoyancy
purposes and have little to do with digestion? If so, then why are they so
picky about the types of stones they ingest?
GIS / Archaeologist http://www.geocities.com/dannsdinosaurs
Melbourne, Australia http://heretichides.soffiles.com