Talk:Sea Dragon Leviathan/@comment-30750793-20170305081006/@comment-27786666-20170307001245

Read the Story piece.

" A little under a thousand years ago, some   Sea Dragon Leviathan   Eggs   were taken by the Precursor race and contained within the Disease Research Facility for testing, however, the mother   Sea Dragon  pursued the Precursors back to the facility and laid waste to it, resulting in the   Carar bacterium   being released onto  Planet 4546B, causing the Precursors to put the planet into   quarantine.

The skeleton of this Sea Dragon can be found near the Disease Research Facility, having suffered massive head trauma from the attack."

Massive head trauma. It broke and morphed it's own skull. That's why it doesn't match.