Late Cretaceous Period (65 Million Years Old). Hell Creek Formation, South Dakota.
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The horridus are always found in ground below the prorsus, so they are older. The horridus have a smaller nose horn and larger beak than the prorsus. It is from Hell Creek Formation near Newell, South Dakota.
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Triceratops Tail Vertebra Centrum - Fossil Dinosaur Bone. 100 % fossil . Treated with a hardener , no rebuilding or patching . Piece measures 4.5 " X 7" X 3" .
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Late Cretaceous Period (65 Million Years Old). Hell Creek Formation, South Dakota.
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The horridus are always found in ground below the prorsus, so they are older. The horridus have a smaller nose horn and larger beak than the prorsus. It is from Hell Creek Formation near Bowman, North Dakota.
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The frill could have been used for defense or possibly to help in mating. The horridus are always found in ground below the prorsus, so they are older. The horridus have a smaller nose horn and larger beak than the prorsus.
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Genus of large, plant-eating ornithischian dinosaurs of the Late Cretaceous Epoch (100–65.5 million years ago). The limbs were very stout, and the hind limbs were more massive than the forelimbs. They functioned by shearing in a vertical to near-vertical orientation.
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It weighs 5.7 oz. From Lance Creek Formation in Wyoming. The horridus are always found in ground below the prorsus, so they are older. The horridus have a smaller nose horn and larger beak than the prorsus.
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