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ZoomDinosaurs.com ALL ABOUT DINOSAURS! |
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"Quake Lizard"
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Seismosaurus' nostrils were at the top of its tiny head. Its small mouth had peg-like teeth, but only in the front of the jaws. Its front legs were shorter than its back legs, and all had elephant-like, five-toed feet. Its short legs may have helped stabilize this enormous dinosaur. One toe on each foot had a thumb claw, probably for protection. Its backbone had extra bones underneath it, which had bony protrusions running both forwards and backwards (chevron shaped), probably for support and extra mobility of its neck and tail. Seismosaurus' tail contained at least one unusual wedge-shaped vertebra that gave it a kink. It may have used this whip-like tail for protection.
Seismosaurus held its neck more-or-less horizontally (parallel to the ground). The long neck may have been used to poke into forests to get foliage that was otherwise unavailable to the huge, lumbering varieties of sauropods who could not venture into forests because of their size. Alternatively, the long neck may have enabled this sauropod to eat soft pteridophytes (horsetails, club mosses, and ferns). These soft-leaved plants live in wet areas, where sauropods couldn't venture, but perhaps the sauropod could stand on firm ground and browse in wetlands.
Seismosaurus was named by paleontologist Gillette in 1991. Seismosaurus fossils have been found in New Mexico, USA. The incomplete fossil includes many gastroliths (gizzard stones), vertebrae (parts of the backbone), chevrons from the spine, some ribs, partial pelvis (hip), and some other assorted bones.
PRINTOUTS
Seismosaurus information/coloring printout
Seismosaurus printout (Simple versions)
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