Lots of Teeth

It had had a lot of teeth. The pict sender image showed the bony remains of a gargantuan creature.
“Sergeant Mudmilk”, ordered Hawk, “take your squad and the pict sender up to that carcass.”
The Red Hunter Space Marines advanced in hostile territory formation. The pict sender showed the vastness of the space in which they were advancing.
The images on the screen swung from side to side with the advance but the image of the skull of the massive beast with teeth as tall as an erect Space Marine lingered in the vision of the watchers.
“Hammerhand started. “What is that in its mouth?”