1.   As would be expected, the predator species preserving the more intact skulls also preserve the highest frequencies of zygomatic process.

2.   But embryos of giant dinosaurs with intact skulls were unknown until now.

3.   White said an accurate portrayal of these creatures was not yet possible because an intact skull or limb bones had not been found.

4.   Hundreds of specimens of a larger species of Confuciusornis have also been found at the site, but all lacked intact skulls.