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The Origin of Tetrapods and Temnospondyls
Lecture notes from the Major Features of Vertebrate Evolution class at the University of Toronto.
Evolution of Limbs
A description of the possible effects of the Hox gene family on vertebrate evolution.
Vertebrate Evolution - Land
A discussion of the required evolutionary adaptations for moving from aquatic life to terrestrial.
Phylogeny of Stegocephalians
Cladistic diagrams, illustrations and references.
Dendrerpeton acadianum
An early temnospondyl found in petrified tree stumps from Joggins, Nova Scotia.
Acanthostega gunnari
A detailed analysis of this early tetrapod by the paleontologist who discovered and described it.
First Footing
A article about the debate between paleontologists and geologists regarding the age of the Celsius Bjerg Group, the fossil site where Ichthyostega and Acanthostega were discovered. From the journal Nature.
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