From Fins to Fingers

@article{Clack2004FromFT,
  title={From Fins to Fingers},
  author={Jennifer Alice Clack},
  journal={Science},
  year={2004},
  volume={304},
  pages={57 - 58}
}
  • J. Clack
  • Published 2 April 2004
  • Biology
  • Science
The transition from fish to tetrapod, and from fins to fingers, began during the Devonian period about 370 to 360 million years ago. In her Perspective, Clack discusses the implications of a new fossil find of a humerus from a Devonian tetrapod that sheds light on the anatomical and functional changes taking place in the tetrapod lineage during this period ( Shubin et al.). 

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References

SHOWING 1-7 OF 7 REFERENCES

The Early Evolution of the Tetrapod Humerus

TLDR
A comparative analysis of this fossil and other relevant humeri from the Devonian shows that the role of the limb in propping the body arose first in fish fins, not tetrapod limbs.

Fish with fingers?

TLDR
This discovery reveals that major tetrapod novelties are also seen in the paddles of some closely related fish and therefore need not have arisen to meet the demands of a terrestrial existence.

Pectoral fins of rhizodontids and the evolution of pectoral appendages in the tetrapod stem-group

TLDR
The pectoral fin skeleton of Rhizodus hibberti, a derived member of the Rhizodontida, is described in detail for the first time, showing that muscular processes of the humerus may have appeared later in tetrapod evolution than previously thought.

A uniquely specialized ear in a very early tetrapod

TLDR
Ichthyostega's braincase and ear region defied interpretation, such that conventional anatomical terms seemed inapplicable, and can now be seen to form part of a highly specialized ear, probably a hearing device for use in water.

Groenlandaspidid placoderm fishes from the Late Devonian of North America

Two new taxa of groenlandaspidid fish (Placodermi: Arthrodira) from non-marine deposits of the Catskill Formation (Upper Devonian) at Red Hill, Clinton County, Pennsylvania, USA, are the first to be

Rhizodont crossopterygian fish from the Dinantian of Foulden, Berwickshire, Scotland, with a re-evaluation of this group

  • S. M. Andrews
  • Environmental Science
    Transactions of the Royal Society of Edinburgh: Earth Sciences
  • 1985
ABSTRACT Material of crossopterygian fishes from Foulden, Berwickshire, is important in including the first known entire specimen giving a clear picture of the body form of the Family Rhizodontidae

The Devonian tetrapod Acanthostega gunnari Jarvik: postcranial anatomy, basal tetrapod interrelationships and patterns of skeletal evolution

TLDR
Comparison between axial skeletons of primitive tetrapods suggests that plesiomorphic fish-like morphologies were re-patterned in a cranio-caudal direction with the emergence of tetrapod vertebral regionalisation.