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The Mesozoic was really cool. Mesozoic. Dinosaurs. First (reported) dinosaur discovery. Megalosaurus. Sir Richard Owen (1804 – 1892). Dinosaur. Victorian Megalosaurus. ‘Modern’ Megalosaurus. Megalosaurus. Archosaurs (all). Archosaurs (fossil). Archosaurs.
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First (reported) dinosaur discovery Megalosaurus
Sir Richard Owen (1804 – 1892) Dinosaur
Archosaurs Diapsida (living)
†Rhynchosaurs Proto - archosaurs
† Rhynchosaurs Proto - archosaurs
Defining the Archosauria *antorbitalfenestra *mandibular fenestra *4thtrochanter
Defining the Archosauria antorbital fenestra mandibular fenestra
Defining the Archosauria 4th trochanter Tyrannosaurus alligator
Defining the Archosauria Teeth in sockets
Defining the Archosauria serrated teeth
†“Thecodonts” Proto – archosaurs ? Primitive archosaurs ?
Mesozoic crocodilians Simosuchus
Mesozoic crocodilians Deinosuchus
Dinosauria Dinosauria
Defining the Dinosauria S-shaped neck Forelimbs shorter than hindlimbs
Defining the Dinosauria About a dozen skeletal features
Iguanodon Megalosaurus
Edward Drinker Cope (1840 – 1897) Othniel Charles Marsh (1831 – 1899)