| Acanthostega: Information from the American Museum of Natural History, with several reconstructions. |
| Acanthostega gunnari: A detailed analysis of this early tetrapod by the paleontologist who discovered and described it. |
| Basal Tetrapod and Amphibian Trees: A list of cladograms tested for their correspondence with stratigraphic data, with references. |
| Central Pennsylvania Legacies: Fishing for History: An article, accompanying a public radio broadcast, describing the discovery of Hynerpeton bassetti at the Red Hill fossil site. A Real Audio archive of the broadcast is included. |
| Dendrerpeton acadianum: An early temnospondyl found in petrified tree stumps from Joggins, Nova Scotia. |
| Eucritta melanolimnetes: Science update from the journal Nature on an early Carboniferous tetrapod, the name of which translates as "Creature from the Black Lagoon". |
| Evolution of Limbs: A description of the possible effects of the Hox gene family on vertebrate evolution. |
| 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. |
| Fish With Fingers: A description of Ted Daeschler and Neil Shubin's discovery of a transitional fish-tetrapod animal. |
| Ichthyostega: A detailed description of the first Devonian tetrapod to be discovered. |
| Neil and Ted's Excellent Adventure: An article describing paleontologists Neil Shubin and Ted Daeschler and their search for early tetrapods, from Philadelphia Citypaper.net. |
| Out of the Swamps: A description of Casineria, an early tetrapod from Scotland, from Science News Online. |
| Phylogeny of Stegocephalians: Cladistic diagrams, illustrations and references. |
| Terrestrial Vertebrates: A description of the tetrapods and other digit bearing vertebrates. |
| Vertebrate Evolution - Land: A discussion of the required evolutionary adaptations for moving from aquatic life to terrestrial. |