A description of Ted Daeschler and Neil Shubin's discovery of a transitional fish-tetrapod animal.

A description of Casineria, an early tetrapod from Scotland, from Science News Online.

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.

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.

A list of cladograms tested for their correspondence with stratigraphic data, with references.

A description of the possible effects of the Hox gene family on vertebrate evolution.

Science update from the journal Nature on an early Carboniferous tetrapod, the name of which translates as "Creature from the Black Lagoon".

An early temnospondyl found in petrified tree stumps from Joggins, Nova Scotia.

Information from the American Museum of Natural History, with several reconstructions.

Cladistic diagrams, illustrations and references.