Mr. Pteranodon is missing. If he's not in the sky, the sea, or the ground, where could he be?

Dialogue and Narration:

Panel 1:
Narration: Somewhere in the Cretaceous over 65 million years ago...

Panel 2:
Matron: "Peep, you're out here every day; it's starting to worry me."
Peep: "Matron, how come Mr. Pteranodon doesn't come around to play? Does he not like me anymore?"

Panel 3:
Matron: "Mr. Pteranodon has been missing for many suns, we've told you."
Peep: "But now that mom and dad are gone, Mr. Pteranodon is the only one who knows how to play!!!"
Matron: "Sweetie, there are other games to play."

Panel 4:
Peep: "But I miss him!"
Matron: "We all do, Peep."
Peep: "I'm staying here. I know that Mr. Pteranodon will come back if he loves me!"

Second Row:

Panel 5:
Matron: "No luck from the raptors, and they are thorough."
Suzi: "I'll tell you why! He's gone down the gullet of Ms. Mosa!"
Aeris: "Suzi, Ms. Mosa would never do that to us"
Suzi: "Her eyesight is poor! It could've been an accident, Aeris!"
Aeris: "We should wait to hear from Princess Plessiana. The whole sea is searching for his corpse."
Matron: "He's not in the sky, the ground, the waters..."

Panel 6:
Peep: Sniffle
Peep: "Chirp..."

Panel 7:
Peep: Sniffle
Peep: "Chirp... chirp... chirp..."
Peep: Sob

Panel 8:
Peep: "SCRAAAAAAAAW!"