CollectA Spinosaurus walkingCollectA Spinosaurus walking CollectA Model 88739 Product Dimensions: 23 x 4 x 8 cm Age: 3 years and up The Spinosaurus was a dinosaur that loved to swim! Unlike many other dinosaurs, the Spinosaurus felt right at home in the water. It had long, paddle like feet that helped it move easily through rivers and lakes in search of food. This unique dinosaur also had a huge sail on its back, made of tall, bony spines with skin stretched between them.