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A critical review of Darwin's publications shows that he did not dissert much about amphibians, in comparison with the other tetrapods. However, in “A Naturalist's Voyage round the World”, Darwin described for the first time several amphibian species and was surprised by their peculiar way of life, terrestrial or euryhaline. These amphibian observations around the world led Darwin to discuss evolutionnary...
The ontogenetic trajectories of fourteen dermal plates from Compagopiscis croucheri (Placodermi, Arthrodira) and,the more derived species Incisoscutum ritchei were compared. The mechanism of allometric predisplacement occured in: the biting division of the inferognathal; the anterior ventrolateral; and the median dorsal breadth. Allometric postdisplacement occured in the postmesial breadth and the...
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