CollectA Prehistoric Life Acrocanthosaurus with Movable Jaw Deluxe 1:40 Scale Paleontologist Approved Model FUN FACTS: Acrocanthosaurus was remarkable for the high neural spines on its neck, back and tail whose function is unknown. Acrocanthosaurus means "High-spined Lizard". PALEONTOLOGIST APPROVED: Working with experts from across the globe, Collecta hand-painted figurines are all factually accurate and paleontologist-approved, so little ones get to learn while they play. AUTHENTICITY: Each prehistoric sculpture has been approved by Anthony Beeson, a well respected expert in palaeoimagery who is also an art librarian, archaeologist and collector, based in the city of Bristol, England. DELUXE 1:40 SCALE: Each of the Collecta Deluxe models comes with a little plastic palaeontologist know as "Sir Arthur Gauge". Sir Arthur comes complete with pickaxe and binoculars and provides scale for each model. This really allows the size of the Acrocanthosaurus to be appreciated. PRODUCT SPECS: Deluxe Acrocanthosaurus measures 13.4" L x 5.4" H making this a relatively large model, but one that can still be held comfortably by the hands of a small child.