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dino quadrates



Does anyone know if any theropod dinosaur had been documented with a double
headed quadrate in the skull a la _Archaeopteryx_ and birds?

Chris

cnedin@geology.adelaide.edu.au                  nedin@ediacara.org
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Many say it was a mistake to come down from the trees, some say
the move out of the oceans was a bad idea. Me, I say the stiffening
of the notochord in the Cambrian was where it all went wrong,
it was all downhill from there.