Stegosaurus Dinosaur Toy with Authentic Plates

Dinosaur models date themselves faster than any other kind, because the science underneath them keeps moving. This one puts the back plates in two staggered rows rather than the flat paired arrangement older toys used, which is where the evidence currently sits, and the four tail spikes are cast as separate points rather than a solid fin.

• Plates in two rows. Staggered rather than paired, matching current reconstruction.
• Four spikes, separate. Cast as individual points off the tail rather than a blade.
• 6.75 by 4 inches. The maker's medium tier, built to display beside others in it.
• Three years and over. Painted individually in lead and phthalate free plastic.

Why the Plates Matter

How Stegosaurus wore its plates has been argued over for a century: flat against the flanks, paired upright, or offset in two rows. The staggered version is what the fossil evidence most strongly supports today, so a model that shows it will still be defensible in ten years where a paired one already is not. That is the difference between a display piece and a dated one.

The Spikes Have a Name

Those four tail points are called a thagomizer, and the word is real enough that working paleontologists use it in print, having borrowed it from a newspaper cartoon in the eighties. It is the only piece of formal anatomy named after a joke, and it is a very good thing to know.

Where It Sits by Size

At 6.75 inches this belongs to the middle of three size tiers, the one designed so pieces stand together without any of them looking wrong. Set beside the larger wildlife figures it will read as small; set beside the inch long minis it will not. Group it with its own tier and the proportions hold.

Questions About the Stegosaurus

How are the plates arranged? Two staggered rows, which is the arrangement current evidence supports.

What size is it? 6.75 inches long and 4 tall, from the middle of the three size ranges.

Are the tail spikes sharp? They are modeled points, not needles, and are blunt to the touch.

Is it safe for play? Rated three and up, in plastic free of lead and phthalates.