turtle skeleton 3d model

Generate an anatomically realistic full-body skeleton of the Pokémon Squirtle in STL format. Pose the skeleton lying flat on its back, fully extended, as if displayed in a scientific museum frame. The model must show the entire skull, spine, ribcage, limbs, hands, feet, and tail bones. Integrate the skeleton with a realistic turtle-inspired shell structure: show the carapace from above with visible plates, and include the internal plastron beneath the spine and ribs. Maintain Squirtle’s recognizable proportions and silhouette while applying accurate reptile/turtle skeletal anatomy. The model must be watertight, 3D-printable, medium-high detail, clean topology, and free of non-manifold edges. Exclude skin, eyes, cartoon features, muscles, or any body parts.