In cases of exceptional
preservation, the internal structure of the skull
can be analyzed and a cast made. The resulting
endocast reveals the structure and overall shape of
a Pterosaur brain. The braincase is relatively
large and the overall brain weight compares
favorably with that of birds.
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The optic lobes are large which
indicates that pterosaurian eye sight was well
developed. Conversely the olfactory lobes are small
and smell must not have been overly depended
upon.
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