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Homoplasy And Homology In Dinosaurs
By Paul Nethercott
January 2014
www.creation.com
http://www.wikipedia.org
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Ichthyosaurs
Dolphins. Ichthyosaurs
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Ankylosaurs and glyptodont mammals both had spiked tails.
Ankylosauria Glyptodontidae
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The sauropods and giraffes independently evolved long necks.
Giraffe Diplodocus
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The horned snouts of dinosaurs like Triceratops have also evolved several times in Cenozoic mammals: rhinos, brontotheres, Arsinoitherium, and Uintatherium.
Triceratops
Rhinoceros
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The horned snouts of dinosaurs like Triceratops have also evolved several times in Cenozoic mammals: rhinos, brontotheres, Arsinoitherium, and Uintatherium.
Brontotheres Arsinoitherium
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The Pelycosauria and the Ctenosauriscidae both had a sail‐like fin on their back.
Dimetrodon Ctenosauris
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The Pelycosauria and the Ctenosauriscidae both had a sail‐like fin on their back.
Dimetrodon
Arizonasaurus
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Some Placodonts (like Cyamodus, Psephoderma, Henodus and especially Placochelys) bear striking resemblance to sea turtles
Cyamodus Placochelys
Psephoderma
Sea Turtles
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Duck‐billed dinosaurs hadrosaurs strikingly convergent with ducks and duck‐billed platypus.
Hadrosaurs Ducks
Platypus