Thus only the internal 'soft' tissues will decay rapidly enough to produce enough acid plus dissolved phosphate levels to allow soft tissue mineralization. The outer tissues will loose acidity and phosphate concentration to the external environment and will not preserve soft tissues. This says that this theropod could not have had a diaphragm. Average diameter of the intestine is 5.22 mm. Message texts were public posts to the Dinosaur Mailing List.
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