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Examples
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Five of the most completely known are the osteolepiform Eusthenopteron; the transitional forms Panderichthys and Tiktaalik; and the primitive tetrapods Acanthostega and Ichthyostega.
Casey Luskin embarrasses himself again - The Panda's Thumb 2010
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Juvenile specimens of Eusthenopteron foordi Whiteaves, 1881 (osteolepiform rhipidistian, Pisces) from the Late Devonian of Miguasha, Quebec, Canada.
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Panderichthys provides incontrovertible evidence of a transitional form between osteolepiform fishes and tetrapods.
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It would also be a mistake to exaggerate the extent to which osteolepiform fishes actually used their fins as arms and legs; the fins in the forms that we know are all small and feeble
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The pattern of internal structure of the osteolepiform limb as in
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The pattern of internal structure of the osteolepiform limb as in
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It would also be a mistake to exaggerate the extent to which osteolepiform fishes actually used their fins as arms and legs; the fins in the forms that we know are all small and feeble
chained_bear commented on the word osteolepiform
"Of, relating to, or designating fishes of the extinct, chiefly Devonian, sarcopterygian order Osteolepiformes, which is thought to have been the evolutionary precursor of the tetrapods and was characterized by the possession of thick scales, one of which (at the base of the fins) was conspicuously enlarged." (OED)
September 9, 2008