Meanwhile, a female "Allosaurus", attracted to the "Stegosaurus" carcass, also gets stuck. The researchers found tendon avulsions only among "Tyrannosaurus" and "Allosaurus". It lived alongside European species of" Allosaurus" ("A. europaeus"), "Ceratosaurus", "Stegosaurus" and presumably "Camptosaurus". The "Allosaurus" then attacks, and is driven off by a "Triceratops". Osteoarthritis has been reported in fossils of the large carnivorous dinosaur "Allosaurus fragilis". It has been reported in fossils of the large carnivorous dinosaur "Allosaurus fragilis". Further research has found medullary bone in the theropod "Allosaurus" and ornithopod "Tenontosaurus". The skull and teeth of "Allosaurus" were modestly proportioned for a theropod of its size. Further research has found medullary bone in the carnosaur "Allosaurus" and the ornithopod "Tenontosaurus". Instead, it was a carnosaur distantly related to "Allosaurus". The dinosaur, an "Allosaurus", rushes the group, scattering the clients. Othniel Charles Marsh gave these remains the formal name "Allosaurus fragilis" in 1877. Some paleontologists consider it to be a species of "Allosaurus" ("A. maximus"). Since 2014, the museum has displayed the skeleton of a long, wide "Allosaurus" dubbed "Ebenezer". Similar conclusions were drawn by another study using finite element analysis on an "Allosaurus" skull.