The longneck known as Doc is a major character in The Land Before Time 6: The Secret of Saurus Rock and the series as a whole, mainly for his status as the legendary lone dinosaur.

Tier: 8-C

Classification: Dinosaur, Sauropod, Diplodocus, Longneck, Leaf-eater

Powers and Abilities: Superhuman physical characteristics, enhanced senses, large size (Type 0; roughly 8 meters tall or more with a stretched out neck), regeneration (Low; quickly healed a bloody injury given to him by the Meanest Sharptooth, though it still resulted in a scar)

Attack Potency: Building level (So powerful in comparison to other members of the cast that he travels alone in areas infected by Sharpteeth and none of them ever pose a threat to him in the slightest)

Speed: Superhuman to Subsonic travel speed with Subsonic attack speed and reactions (Blitzed the Meanest Sharptooth several times. Among longnecks, he is especially swift)

Lifting Strength: At least Class K (Overpowered the Meanest Sharptooth. Likely superior to the Great Valley adults who have this level of strength)

Striking Strength: Building level

Durability: Building level

Stamina: Superhuman (Though he's never fought for an extended period of time, his stamina should be superior to other characters since he takes on Sharpteeth pretty regularly)

Range: Several meters with neck and tail (Uses both like whips and battering rams against Sharpteeth, especially the former since he's especially good at it)

Intelligence: Average (Seems somewhat wise, having lived for a fairly long time, but doesn't have intelligence above most other adults in the series, though it has likely aided him to survive for as long as he has, beyond how strong he is)

Weakness: None notable