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Re: DINOSAUR digest 3384



Large dinos
may not have needed (detectable) adaptations to stay
submerged for significant periods of time. Never seen
this mentioned in discussions of sauropod
lifestyles...

Large dinos needed large bodies of water to stay submerged for any periods of time... the Morrison Fm environment had enough water to submerge 4 m long lungfish, but apparently not enough to submerge 40 m long sauropods...