Thanks for the question! To my knowledge,
the fossils of an individual organism have never
been found split between two continents. I
cannot think of any reason why this would be
impossible, although there are reasons why it is
unlikely. When a continent splits into two
continents, a rift between the two new continents
forms and fills with hot magma rushing up from
many miles deep in the ground. The rocks nearby
the magma get "cooked" and sometimes melt
Any dinosaur bones in these rocks would be
destroyed by this heat. In addition, the splitting
of a continent causes rocks to stretch, crack, and
move around relative to nearby rocks, processes
which are also likely to destroy dinosaur bones.
To summarize: given ideal conditions, there
is no reason why it is impossible to split in two
and preserve a single dinosaur skeleton on
multiple continents; however, this is highly
unlikely and I know of no found examples.
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