The axial skeleton of the Devonian tetrapod Ichthyostega

  title={The axial skeleton of the Devonian tetrapod Ichthyostega},
  author={Per Erik Ahlberg and Jennifer Alice Clack and Henning Blom},
Ichthyostega was the first Devonian tetrapod to be subject to a whole-body reconstruction. It remains, together with Acanthostega, one of only two Devonian tetrapods for which near-complete postcranial material is available. It is thus crucially important for our understanding of the earliest stages of tetrapod evolution and terrestrialization. Here we show a new reconstruction of Ichthyostega based on extensive re-examination of original material and augmented by recently collected specimens… 

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The dermal skull roof of Acanthostega gunnari, an early tetrapod from the Late Devonian

  • J. Clack
  • Environmental Science
    Transactions of the Royal Society of Edinburgh: Earth Sciences
  • 2002
ABSTRACT The dermal skull roof of Acanthostega gunnari Jarvik is described in detail, giving new information on the anatomy, and new reconstructions of the skull in dorsal, lateral and occipital

Localities, distribution and stratigraphical context of the Late Devonian tetrapods of East Greenland.

Localities, distribution and stratigraphical context of the Late Devonian tetrapods of East Greenland.

Basic Structure and Evolution of Vertebrates.

The Physics of Stars, Second Edition, is a concise introduction to the properties of stellar interiors and consequently the structure and evolution of stars.