WND Offers Supremely Dumb Creationist Argument

Let’s take the central subject of the book: the “Cambrian explosion”, or the apparently rapid diversification of life during the Cambrian Period, starting about 545 million years ago. When Darwin wrote about it in 1859, it was indeed a puzzle, since so little was known about the fossil record then. But as paleontologists have worked hard on the topic and learned a lot since about 1945 (as I discuss in detail in my 2007 book,Evolution: What the Fossils Say and Why It Matters). As a result, we now know that the “explosion” now takes place over an 80 m.y. time framework. Paleontologists are gradually abandoning the misleading and outdated term “Cambrian explosion” for a more accurate one, “Cambrian slow fuse” or “Cambrian diversification.” The entire diversification of life is now known to have gone through a number of distinct steps, from the first fossils of simple bacterial life 3.5 billion years old, to the first multicellular animals 700 m.y. ago (the Ediacara fauna), to the first evidence of skeletonized fossils (tiny fragments of small shells, nicknamed the “little shellies”) at the beginning of the Cambrian, 545 m.y. ago (the Nemakit-Daldynian and Tommotian stages of the Cambrian), to the third stage of the Cambrian (Atdabanian, 530 m.y. ago), when you find the first fossils of the larger animals with hard shells, such as trilobites. But does Meyer reflect this modern understanding of the subject? No! His figures (e.g., Figs. 2.5, 2.6, 3.8) portray the “explosion” as if it happened all at once, showing that he has paid no attention to the past 70 years of discoveries. He dismisses the Ediacara fauna as not clearly related to living phyla (a point that is still debated among paleontologists), but its very existence is fatal to the creationist falsehood that multicellular animals appeared all at once in the fossil record with no predecessors. Even more damning, Meyer completely ignores the existence of the first two stages of the Cambrian (nowhere are they even mentioned in the book, or the index) and talks about the Atdabanian stage as if it were the entire Cambrian all by itself. His misleading figures (e.g., Fig. 2.5, 2.6, 3.8) imply that there were no modern phyla in existence until the trilobites diversified in the Atdabanian. Sorry, but that’s a flat out lie. Even a casual glance at any modern diagram of life’s diversification (Figure 1) demonstrates that probable arthropods, cnidarians, and echinoderms are present in the Ediacara fauna, mollusks and sponges are well documented from the Nemakit-Daldynian Stage, and brachiopods and archaeocyathids appear in the Tommotian Stage–all millions of years before Meyer’s incorrectly defined “Cambrian explosion” in the Atdabanian. The phyla that he lists in Fig. 2.6 as “explosively” appearing in the Atdabanian stages all actually appeared much earlier–or they are soft-bodied phyla from the Chinese Chengjiang fauna, whose first appearance artificially inflates the count. Meyer deliberately and dishonestly distorts the story by implying that these soft-bodied animals appeared all at once, when he knows that this is an artifact of preservation. It’s just an accident that there are no extraordinary soft-bodied faunas preserved before Chengjiang, so we simply have no fossils demonstrating their true first appearance, which occurred much earlier based on molecular evidence.

Meyer’s distorted and false view of conflating the entire Early Cambrian (545-520 m.y. ago) as consisting of only the third stage of the Early Cambrian (Atdabanian, 530-525 m.y. ago) creates a fundamental lie that falsifies everything else he says in the ensuing chapters. He even attacks me (p. 73) by claiming that during our 2009 debate, it was I who was improperly redefining the Cambrian! Even a cursory glance at any recent paleontology book on the topic, or even the Wikipedia site for “Cambrian explosion”, shows that it is Meyer who has cherry-picked and distorted the record, completely ignoring the 15 million years of the first two stages of the Cambrian because their existence shoots down his entire false interpretation of the fossil record. Sorry, Steve, but you don’t get to contradict every paleontologist in the world, ignore the evidence from the first two stages of the Cambrian, and redefine the Early Cambrian as the just the Atdabanian Stage just to fit your fairy tale!

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