cavity+between+the+jaws
131Tarbosaurus — Bilateria Tarbosaurus Temporal range: Late Cretaceous, 70 Ma …
132Chaetognatha — Arrow worms Temporal range: Lower Cambrian–Recent …
131Tarbosaurus — Bilateria Tarbosaurus Temporal range: Late Cretaceous, 70 Ma …
132Chaetognatha — Arrow worms Temporal range: Lower Cambrian–Recent …