Treasures of the Internet: Ecosystems

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Thursday 08:18:08

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Dinosaur Groups

Dinosauria includes animals whose bodies were built around two very different pelvic structures. Accordingly, Dinosauria is divided into two major groups:

Untitled Saurischia ("Lizard-hipped" or "Reptile-hipped")
Untitled Ornithischia ("Bird-hipped")

Untitled Saurischia ("Lizard-hipped" or "Reptile-hipped")

Untitled Sauropodomorpha
- Untitled Prosauropoda
  - Anchisauridae
    - Anchisaurus
  - Massospondylidae
    - Massospondylus
  - Melanorosauridae
    - Lufengosaurus
  - Plateosauridae
    - Ammosaurus
    - Plateosaurus
  - Platyosauridae
    - Mussaurus
- Untitled Sauropoda (Reptile foot)
Untitled Theropoda (Beast foot)

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First Written: 19990104 Latest Update: 20060328 Untitled

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