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The Devonian Period 9
The Mississippian Period 2
Paleontologists 5
| | Herpetology - Chordates, Zoology, Biology, Science 68
 AcanthostegaAcanthostega
 Information from the American Museum of Natural History, with several reconstructions.
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Acanthostega gunnariAcanthostega gunnari
 A detailed analysis of this early tetrapod by the paleontologist who discovered and described it.
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Ancient Amphibians Discovered in IowaAncient Amphibians Discovered in Iowa
 Description of this Mississippian fossil site.
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Basal Tetrapod and Amphibian TreesBasal Tetrapod and Amphibian Trees
 A list of cladograms tested for their correspondence with stratigraphic data, with references.
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Dendrerpeton acadianumDendrerpeton acadianum
 An early temnospondyl found in petrified tree stumps from Joggins, Nova Scotia.
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Eucritta melanolimnetesEucritta melanolimnetes
 Science update from the journal Nature on an early Carboniferous tetrapod, the name of which translates as "Creature from the Black Lagoon".
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Evolution of LimbsEvolution of Limbs
 A description of the possible effects of the Hox gene family on vertebrate evolution.
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First FootingFirst 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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Fish With FingersFish With Fingers
 A description of Ted Daeschler and Neil Shubin's discovery of a transitional fish-tetrapod animal.
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IchthyostegaIchthyostega
 A detailed description of the first Devonian tetrapod to be discovered.
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The Origin of Tetrapods and TemnospondylsThe Origin of Tetrapods and Temnospondyls
 Lecture notes from the Major Features of Vertebrate Evolution class at the University of Toronto.
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Phylogeny of StegocephaliansPhylogeny of Stegocephalians
 Cladistic diagrams, illustrations and references.
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Terrestrial VertebratesTerrestrial Vertebrates
 A description of the tetrapods and other digit bearing vertebrates.
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Vertebrate Evolution - LandVertebrate Evolution - Land
 A discussion of the required evolutionary adaptations for moving from aquatic life to terrestrial.
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Central Pennsylvania Legacies: Fishing for HistoryCentral 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. (February 24, 2000)
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Neil and Ted's Excellent AdventureNeil and Ted's Excellent Adventure
 An article describing paleontologists Neil Shubin and Ted Daeschler and their search for early tetrapods, from Philadelphia Citypaper.net. (July 1, 1999)
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Out of the SwampsOut of the Swamps
 A description of Casineria, an early tetrapod from Scotland, from Science News Online. (May 22, 1999)
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