Article
Morphological and developmental macroevolution: a paleontological perspective.
The International journal of developmental biology - 1 Jan 2003
Valentine James W, Jablonski David
Abstract excerpt
Evidence of the morphological evolution of metazoans has been preserved, in varying degrees of completeness, in the fossil record of the last 600 million years. Although extinction has been incessant at lower taxonomic levels, genomic comparisons among surviving members of higher taxa suggest that much of the developmental systems that pattern their bodyplans has been conserved from early in their history....
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