homoplasyand homology in dinosaurs by paul nethercott ... · hadrosaurs ducks platypus. title:...

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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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Page 1: HomoplasyAnd Homology In Dinosaurs By Paul Nethercott ... · Hadrosaurs Ducks Platypus. Title: Microsoft PowerPoint - Dinosaurs Author: Paul Created Date: 2/19/2014 6:57:32 PM

Homoplasy And Homology In Dinosaurs

By Paul Nethercott

January 2014

www.creation.com

http://www.wikipedia.org

Page 2: HomoplasyAnd Homology In Dinosaurs By Paul Nethercott ... · Hadrosaurs Ducks Platypus. Title: Microsoft PowerPoint - Dinosaurs Author: Paul Created Date: 2/19/2014 6:57:32 PM

Ichthyosaurs

Dolphins. Ichthyosaurs

Page 3: HomoplasyAnd Homology In Dinosaurs By Paul Nethercott ... · Hadrosaurs Ducks Platypus. Title: Microsoft PowerPoint - Dinosaurs Author: Paul Created Date: 2/19/2014 6:57:32 PM

Ankylosaurs and glyptodont mammals both had spiked tails.

Ankylosauria Glyptodontidae

Page 4: HomoplasyAnd Homology In Dinosaurs By Paul Nethercott ... · Hadrosaurs Ducks Platypus. Title: Microsoft PowerPoint - Dinosaurs Author: Paul Created Date: 2/19/2014 6:57:32 PM

The sauropods and giraffes independently evolved long necks.

Giraffe Diplodocus

Page 5: HomoplasyAnd Homology In Dinosaurs By Paul Nethercott ... · Hadrosaurs Ducks Platypus. Title: Microsoft PowerPoint - Dinosaurs Author: Paul Created Date: 2/19/2014 6:57:32 PM

The horned snouts of dinosaurs like Triceratops have also evolved several times in Cenozoic mammals: rhinos, brontotheres, Arsinoitherium, and Uintatherium.

Triceratops

Rhinoceros

Page 6: HomoplasyAnd Homology In Dinosaurs By Paul Nethercott ... · Hadrosaurs Ducks Platypus. Title: Microsoft PowerPoint - Dinosaurs Author: Paul Created Date: 2/19/2014 6:57:32 PM

The horned snouts of dinosaurs like Triceratops have also evolved several times in Cenozoic mammals: rhinos, brontotheres, Arsinoitherium, and Uintatherium.

Brontotheres Arsinoitherium

Page 7: HomoplasyAnd Homology In Dinosaurs By Paul Nethercott ... · Hadrosaurs Ducks Platypus. Title: Microsoft PowerPoint - Dinosaurs Author: Paul Created Date: 2/19/2014 6:57:32 PM

The Pelycosauria and the Ctenosauriscidae both had a sail‐like fin on their back.

Dimetrodon Ctenosauris

Page 8: HomoplasyAnd Homology In Dinosaurs By Paul Nethercott ... · Hadrosaurs Ducks Platypus. Title: Microsoft PowerPoint - Dinosaurs Author: Paul Created Date: 2/19/2014 6:57:32 PM

The Pelycosauria and the Ctenosauriscidae both had a sail‐like fin on their back.

Dimetrodon

Arizonasaurus

Page 9: HomoplasyAnd Homology In Dinosaurs By Paul Nethercott ... · Hadrosaurs Ducks Platypus. Title: Microsoft PowerPoint - Dinosaurs Author: Paul Created Date: 2/19/2014 6:57:32 PM

Some Placodonts (like Cyamodus, Psephoderma, Henodus and especially Placochelys) bear striking resemblance to sea turtles

Cyamodus Placochelys

Psephoderma

Sea Turtles

Page 10: HomoplasyAnd Homology In Dinosaurs By Paul Nethercott ... · Hadrosaurs Ducks Platypus. Title: Microsoft PowerPoint - Dinosaurs Author: Paul Created Date: 2/19/2014 6:57:32 PM

Duck‐billed dinosaurs hadrosaurs strikingly convergent with ducks and duck‐billed platypus.

Hadrosaurs Ducks

Platypus