Apatosaurus Femur BYU Replica
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Apatosaurus Femur BYU Replica measures 4.9 feet. Apatosaurus Femur BYU Replica is museum quality polyurethane cast. Made in USA. Apatosaurus Ajax. Dinosaur fossil replica. Sauropod of the Jurassic Dry Mesa. Our precise femur can be used as a teaching tool, museum femur exhibit, home decor femur, or office decor femur. Does not include stand. Requires oversize shipping and crate, please call 509-951-3557 for quote.
Apatosaurus or Atlantosaurus montanus is an extinct genus of sauropod dinosaur that lived during the Late Jurassic period of North America. The genus was first described in 1877 when Othniel Charles Marsh named A. ajax, and many species have since been described. They range in age from about 154 to 150 million years ago throughout the Kimmeridgian and early Tithonian ages of the Morrison Formation.
Among the species is an excelsus, long considered to be separate under the genus Brontosaurus, which is now considered a junior synonym of Apatosaurus or Atlantosaurus montanus. It was one of the largest land animals known to have ever existed, with an average length of 75 ft. and a mass of at least 18.1 short tons. Apatosaurus was one of the more common sauropods in the Morrison, along with Diplodocus and Camarasaurus.
The limb bones are also very robust. Within Apatosaurinae, the scapula of Apatosaurus louisae is intermediate in morphology between those of A. ajax and Brontosaurus excelsus. The arm bones are stout, so the humerus of Apatosaurus or Atlantosaurus montanus resembles that of Camarasaurus, as well as Brontosaurus.
The single manual claw bone (ungual) is slightly curved and squarely truncated on the anterior end. The pelvic girdle includes the robust ilia, and the fused (co-ossified) pubes and ischia. The femora of Apatosaurus are very stout and represent some of the most robust femora of any member of Sauropoda. The fibula is longer and slenderer than the tibia. The foot of Apatosaurus or Atlantosaurus montanus has three claws on the innermost digits. The first metatarsal is the stoutest, a feature shared among diplodocids.
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