- Archæopteryx
- An Acheulean Boucher
- An Acheulean Boucher
- American Mastadon
- A Tooth of Zeuglodon, One of the 'Yoke Teeth,' from which it derives the name
- A Theory of Flint Flaking
- A Theory of Flint Flaking
- A Single Vertebra of Brontosaurus
- A Reindeer Age Masterpiece
- A Primitive Spindle
- A Primitive Spindle
- A Menhir of the Neolithic Period
- A Mammoth Drawn on the Wall of the Font-de-Gaume Cavern
- A hunter using an atlatl
- A Hind Leg of the Great Brontosaurus, the Largest of the Dinosaurs
- A Great Sea Lizard Tylosaurus Dyspelo
- A Grazing Bison, Delicately and Carefully Drawn, Engraved on a Wall of the Altamira Cave, Northern Spain
- A Break-wind
- A Break-wind
- A Bark Raft
- A Bark Raft
- A Bark Canoe
- A Bark Canoe