Learning Resources Dinosaur Counters. These colourful dyno counters feature 10 common dinosaur species with realistic detailing: Tyrannosaurus Rex, Stegosaurus, Triceratops, Brachiosaurus, Pachycephalosaurus, Spinosaurus, Stuthiosaurus, Apatosaurus and Velociraptor. Beautifully detailed soft rubber animal counters are ideal for developing early maths activities and storytelling. Set includes 60 plastic counters in a useful plastic storage tub. Largest counter (T-Rex) measures 5 cm height. Counters are also ideal for student awards. Suitable for ages 3 years and above.