Two Recent Fossils Confront Gradual Evolution | The Institute for Creation Research

Two Recent Fossils Confront Gradual Evolution

In Charles Darwin’s On the Origin of Species, he claimed that “natural selection acts only by taking advantage of slight successive variations; she can never take a sudden leap, but must advance by short and sure though slow steps.”1 Mainstream evolutionary thinkers accept Darwin’s premise, but have the 150 years of fossil discoveries since publication of the 4th edition of Origin revealed gradual evolution? Two recently found fossils offer a test.

If evolution occurred, textbooks and museums should abound with examples showing fossil A in lower sedimentary layers, fossil B in upper layers (or with still-living counterparts), and many slight, successive variations of fossils between them. Fossils should clearly show evolution from A to B. Why do textbook writers overuse old and long-disproven fossil illustrations of evolution instead of regularly supplying freshly discovered A-to-B transitional fossils? Many fossils don’t fit this Darwinian prediction.

In May 2016, researchers described an odd-looking, short-snouted, long-tailed ichthyosaur relative from Anhui Province, China. Ichthyosaurs were roughly dolphin-shaped marine reptiles. Discoverers dug the fossil from Spathian layers, some of the lowest sedimentary layers that have ichthyosaur fossils. Where were the intervening layers that show graded steps between the more familiar long-snouted, short-tailed ichthyosaurs and this new oddball? Nowhere. Both varieties occur almost side by side.

The researchers who described the new fossil said, “Given that the fossil record of Ichthyosauromorpha is unlikely to extend back to the Smithian…, their evolution likely proceeded very rapidly in the early-mid Spathian.”2 How does “very rapidly” compare with Darwin’s “slow steps”?

A 2011 discovery on Kangaroo Island, South Australia, provides another evolutionary misfit. Fossilized compound eyes were found in Cambrian layers. With 8,000 individual segments arranged in tight, hexagonal tubes, these eyes—probably shrimp eyes—from the lowermost fossil layers look just like today’s fully formed arthropod eyes. Where does one find the sedimentary layers with fossils displaying many gradual changes between simpler eyeless ancestral shrimp and more evolved shrimp with fully formed eyes? Nowhere. No succession of slight variations interrupts the already complete arthropod eyes found from the bottom fossil layers to today’s ocean creatures.

With no mention of “slow steps” in fossilized arthropod eyes, the research team wrote, “The new fossils reveal that some of the earliest arthropods had already acquired visual systems similar to those of living forms, underscoring the speed and magnitude of the evolutionary innovation that occurred during the Cambrian Explosion.”3,4 How would the man who asserted that evolution “can never take a sudden leap” have reacted to this “speed and magnitude of the evolutionary innovation”?

These two examples mirror hundreds of others, but any example of a sudden leap refutes Darwin’s “slow steps” assertion. Can a different origins model better explain fossil facts? The creature traits that evolutionists suggest evolved so rapidly, God may have created instantly. Or God-given biological systems may have produced trait variations within creature kinds.5 Creation explains the abrupt appearance of precise designs in living things, and the Flood explains how creatures got locked in rock layers—frozen as fossils for us to examine.

References

  1. Darwin, C. 1866. On the Origin of Species, 4th ed. London: John Murray, 232.
  2. Jiang, D.-Y. et al. 2016. A large aberrant stem ichthyosauriform indicating early rise and demise of ichthyosauromorphs in the wake of the end-Permian extinction. Scientific Reports. 6: 26232.
  3. Lee, M. S. Y. et al. 2011. Modern optics in exceptionally preserved eyes of Early Cambrian arthropods from Australia. Nature. 474 (7353): 631-634. See Thomas, B. Cambrian Shrimp Eyes Are ‘Surprisingly Advanced.’ Creation Science Update. Posted on icr.org July 20, 2011.
  4. Bible-minded scientists recognize Cambrian fossils as monuments to the worldwide watery death and burial of sea and other creatures during Noah’s Flood rather than as evidence of evolutionary innovation. See Morris, J. D. 2012. The Global Flood. Dallas, TX: Institute for Creation Research, 123.
  5. For examples, see ICR.org/life-adapt.

Ichthyosaur fossil. Image credit: Naturalis Historia.

* Mr. Thomas is Science Writer at the Institute for Creation Research.

Cite this article: Brian Thomas, Ph.D. 2016. Two Recent Fossils Confront Gradual Evolution. Acts & Facts. 45 (8).

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