PGS Daily Dinosaur – Stegosaurus stenops

You’ll probably recognize today’s iconic Daily Dinosaur, the Stegosaurus stenops, by its large armored plates – they’re hard to miss! In The Princeton Field Guide to Dinosaurs, Gregory S. Paul helps us get to know this dinosaur inside and out with three detailed drawings of its skin and bone structure. Scroll down to read more about Stegosaurus below, or click here to see more Daily Dinosaurs!

This image is taken from The Princeton Field Guide to Dinosaurs by Gregory S. Paul. It may not be reproduced elsewhere without permission.

This image is taken from The Princeton Field Guide to Dinosaurs by Gregory S. Paul. It may not be reproduced elsewhere without permission.

Stegosaurus stenops
6.5 m (21 ft) TL, 3.5 tonnes
FOSSIL REMAINS Two complete skulls and several skeletons, completely known.
ANATOMICAL CHARACTERISTICS Head shallow. Trunk short and deep, belly and hips narrow and slab sided. Leg long. Alternating armor plates very large over trunk and tail, two pairs of spines form subhorizontal pin-cushion array at end of S-curved tail tip.
AGE Late Jurassic, Late Oxfordian to Middle Kimmeridgian.
DISTRIBUTION AND FORMATION Colorado; lower Morrison.
HABITAT Short wet season, otherwise semiarid with open floodplain prairies and riverine forests.
HABITS Very well adapted for rearing, may have been able to walk slowly bipedally. Broken and healed spines and wound in Allosaurus tail show it used tail spine array as a weapon.
NOTES Because the original Stegosaurus specimen is incomplete and poorly documented, the basis of the genus and the various species is poorly understood. Main enemy Allosaurus.