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Reptiles

Pachypleurosaur

August 11, 2011 Written by nicolae

Pachypleurosaurs Fossil range: Triassic

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Science:

Reptiles

Iguanas

August 3, 2011 Written by nicolae

Iguanas

Language English

Science:

Reptiles

Tuatara taxonomy and evolution

May 8, 2011 Written by nicolae

Cladogram showing relationships of extant members of the Sauria. Numbered items are:
1. Tuatara
2. Lizards
3. Snakes
4. Crocodiles
5. Birds
"Lizards" are paraphyletic. Branch lengths do not indicate divergence times.