Skip to content
Dino Codex
TriceratopsAI image
AI imageCreated with GPT Image 2 by OpenAI on Oct 28, 2026

Match with prompt

100% (8/8 items)

See the checklist, prompt and sources
  • ✓Two long brow horns and one short nose horn
  • ✓Solid frill without holes, edged with triangular bony points
  • ✓Large hooked parrot-like beak
  • ✓Quadrupedal, elbows slightly out, fingers pointing forward and outward
  • ✓Large rounded scales, some with small bumps
  • ✓Whole animal visible in side viewThree-quarter view rather than a straight side view
  • ✓Scene matches the period and the fossil site
  • ✓No text, people or modern objects

Checked by Claude Opus 5.5 (checked item by item from the image) on Oct 28, 2026. The score is the share of checklist items the image gets right; it is not an expert scientific review.

Prompt used to create the image

Scientifically accurate paleoart of Triceratops, a herbivore Ceratopsidae dinosaur from the late Maastrichtian, at the very end of the Cretaceous (about 68–66 million years ago). Two long brow horns above the eyes and one short horn on the nose. A solid bony frill without holes, edged with small triangular bony points. Reference: Triceratops is a genus of chasmosaurine ceratopsian dinosaur that lived during the late Maastrichtian age of the Late Cretaceous period, about 69 to 66 million years ago on the island continent of Laramidia, now forming western North America. It was one of the last-known non-avian dinosaurs and lived until the Cretaceous–Paleogene extinction event 66 million years ago. The name Triceratops, which means 'three-horned face', is derived from Ancient Greek trí-, meaning 'three', kéras, meaning 'horn', and ṓps, meaning 'face'. Anatomy: a large, hooked, parrot-like beak; quadrupedal with pillar-like hind legs; front legs semi-erect with the elbows slightly out and the fingers pointing forward and outward, NOT palms-down; skin of large rounded scales, some with small conical bumps. Full body in side view, whole animal visible, standing in a humid latest-Cretaceous floodplain forest like the Hell Creek Formation of North America, with conifers, ferns and early flowering trees and shrubs, no grass. Natural history museum illustration style, realistic textures and natural daylight, muted natural colors. No text, no labels, no humans, no modern objects.

Facts in the prompt come from Wikipedia (en) and Paleobiology Database

Triceratops

Name meaning: Means "three-horned face", after the three horns on its head.

Herbivore

📏 About 9 m long and up to 12 tonnes, heavier than an adult African elephant.

📐 Compare its size with other dinosaurs →

Find it in a game

Triceratops was a plant-eater with a large bony frill over its neck and three horns: a short one on the nose and two long ones above the eyes, used for defense against predators such as Tyrannosaurus.

Fun facts

  • Some Triceratops frills still carry Tyrannosaurus bite marks.
  • The brow horns of Triceratops could reach about 1 m long.

Who lived alongside it

Dinosaurs found in the same rock formation as Triceratops (Hell Creek, Lance), so they lived in the same region at roughly the same time.

Formation data from the Paleobiology Database, counting only each genus's main formations. One formation can span hundreds of thousands to millions of years, so this doesn't mean any two of them ever met.

Scientific details

Classification
Ornithischian (bird-hipped)
Family
Ceratopsidae
When it lived
66–83.6 million years ago
Geologic stages
Campanian – Maastrichtian
Named by
Marsh, 1889
Fossil occurrences
166 sites

Countries with fossils

  • Canada
  • United States

Data from Paleobiology Database and Wikidata