Kentrosaurus Timeline

Kentrosaurus > Timeline

Kentrosaurus Timeline

Time	Event
Approximately 220 million years ago	First dinosaurs evolve during the Triassic period.
Approximately 156 million years ago	First Kentrosaurus appears during the Jurassic period.
Approximately 150 million years ago	Kentrosaurus extinct.
Approximately 65 million years ago	Cretaceous-Tertiary extinction event: All non-avian dinosaurs) go extinct (although of course Kentrosaurus has already been extinct for many millions of years by this time). The K/T Extinction Event may have been caused by an asteroid impact:
1909	German Tendaguru Expedition finds Kentrosaurus fossils. Natives with excavation on German Tendaguru Expedition:
1910	Tendaguru Expedition leader Werner Janensch recognizes Kentrosaurus bones as belonging to a Stegosaur. Werner Ernst Martin Janensch:
1915	Edwin Hennig describes and names Kentrosaurus. Edwin Hennig:
1916	Because of the similarity between "Kentrosaurus" and "Centrosaurus", Hennig suggests changing the animal's name to "Kentrurosaurus", whereas Baron Franz Nopcsa proposed "Doryphorosaurus". Eventually, however the original name chosen by Hennig, "Kentrosaurus", becomes generally accepted.
1925	Edwin Hennig writes a detailed monograph on Kentrosaurus.
1925	Werner Janensch mounts a Kentrosaurus in the Museum für Naturkunde in Berlin, Germany.
1993	George Olshevsky classifies some Stegosaur fossils found in North America in 1914 by Charles Gilmore as a North American species of Kentrosaurus: Kentrosaurus longispinus. Although the animal is certainly a close relative of Kentrosaurus, Olshevsky's classification is not generally accepted by the paleontological community, and the animal is assigned its own Genus: Natronasaurus.
2006	Werner Janensch's mounted Kentrosaurus (mounted in 1925) in the Museum für Naturkunde is disassembled.
2007	The mounted Kentrosaurus in the Museum für Naturkunde is reassembled.differently, so as to reflect the latest anatomical knowledge. Kentrosaurus in the Museum für Naturkunde:

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