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The Ballad of Big Al, [a] marketed as Allosaurus [b] in North America, is a 2000 special episode of the nature documentary television series Walking with Dinosaurs. The Ballad of Big Al is set in the Late Jurassic, 145 million years ago, and follows a single Allosaurus specimen nicknamed "Big Al" whose life story has been reconstructed based on a well-preserved fossil of the same name.
Thagomizer on mounted Stegosaurus tail. A thagomizer (/ ˈ θ æ ɡ ə m aɪ z ər /) is the distinctive arrangement of four spikes on the tails of stegosaurian dinosaurs. These spikes are believed to have been a defensive measure against predators. [1] [2] The arrangement of spikes originally had no distinct name.
A sketch of a Stegosaurus (based on a drawing by Ray Lydekker) forms an important plot point in the opening chapters of The Lost World by Arthur Conan Doyle.. In Tarzan at the Earth's Core, by Edgar Rice Burroughs, Jason Gridley encounters a Stegosaurus in Pellucidar, the world within the Earth.
Stegosaurus longispinus was named by Charles W. Gilmore in 1914 based on a fragmentary postcranial skeleton that has largely been lost. [61] [8] It is now the type species of the genus Alcovasaurus, though it has been referred to Miragaia. [62] [61] Stegosaurus madagascariensis from Madagascar is known solely from teeth and was described by ...
Galton and Carpenter considered Alcovasaurus a member of the Stegosauridae, not more closely related to Kentrosaurus than to Stegosaurus. [1] However, a 2017 phylogeny of stegosaurids by Thomas Raven and Susannah Maidment found that Alcovasaurus lacked the fusion between the trochanters of the femur seen in adult eurypodans (stegosaurians and ankylosaurians), which means that it cannot be ...
Unlike the more popular Lego line of interlocking brick toys, which is a primary competitor, the Tente line emphasizes commercial and military vehicles of a variety of scales, less confined to the "minifig" [clarification needed] scale that dominates Lego building sets. The primary physical difference with Lego bricks is that Tente brick's ...
Allosaurus and Stegosaurus skeletons, the Denver Museum of Nature and Science. A biomechanical study published in 2013 by Eric Snively and colleagues found that Allosaurus had an unusually low attachment point on the skull for the longissimus capitis superficialis neck muscle compared to other theropods such as Tyrannosaurus. This would have ...
Allosaurus sp. nov. Late Jurassic: Possible new species Arkhane: Big Al MOR 693 Museum of the Rockies: Allosaurus jimmadseni: Kimmeridgian: Morrison Formation: Almost complete specimen with multiple pathologies. Big Al: Big Al 2 SMA 0005 Saurier Museum: Allosaurus jimmadseni: Late Jurassic Morrison Formation: Big Al 2, the Allosaurus: Big Joe [155]