Changes

{{quotebox|Until almost 1950 the absence of metazoan fossils older than Cambrian age continued to puzzle evolutionists and earth historians alike.  Other than the remains of single-celled creatures and the matlike stromatolites, it did indeed look as if larger creatures had arisen with a swiftness that made a mockery of Darwin’s theory of evolution.  This notion was finally put to rest, however, by the discovery of the Ediacarian and Vendian fossil faunas of the latest Precambrian age. (35)}}

{{quotebox|Until almost 1950 the absence of metazoan fossils older than Cambrian age continued to puzzle evolutionists and earth historians alike.  Other than the remains of single-celled creatures and the matlike stromatolites, it did indeed look as if larger creatures had arisen with a swiftness that made a mockery of Darwin’s theory of evolution.  This notion was finally put to rest, however, by the discovery of the Ediacarian and Vendian fossil faunas of the latest Precambrian age. (35)}}

{{quotebox|The long accepted theory of the sudden appearance of skeletal metazoans at the base of the Cambrian was incorrect: the basal Cambrian boundary marked only the first appearance of relatively large skeleton-bearing forms, such as the trilobites and brachiopods, rather than the first appearance of skeletonized metazoans.  Darwin would have been satisfied.  The fossil record bore out his conviction that the trilobites and brachiopods appeared only after a long period of evolution of ancestral forms.(36-37)}}

{{quotebox|The long accepted theory of the sudden appearance of skeletal metazoans at the base of the Cambrian was incorrect: the basal Cambrian boundary marked only the first appearance of relatively large skeleton-bearing forms, such as the trilobites and brachiopods, rather than the first appearance of skeletonized metazoans.  Darwin would have been satisfied.  The fossil record bore out his conviction that the trilobites and brachiopods appeared only after a long period of evolution of ancestral forms.(36-37)}}