The Cambrian Explosion Mystery Deepens | The Institute for Creation Research

The Cambrian Explosion Mystery Deepens

Trilobites (a type of arthropod) appear in sedimentary rocks as part of the Cambrian Explosion.1 In this episode, all the major animal groups first appear as fossils. They appear suddenly, fully-formed, and functional, and the older rock layers below them contain no ancestors.2,3

Creation scientists explain the sudden appearance of these Cambrian-system fossils as evidence of the first major advance of water across the continents at the onset of the Flood. Imagine huge tsunami-like waves overtaking millions of creatures. It seems likely that shallow marine organisms were the first types of animals buried by these raging floodwaters.1

Creation scientists explain the sudden appearance of Cambrian-system fossils as evidence of the first major advance of water across the continents at the onset of the Flood. Tweet: Creation scientists explain the sudden appearance of Cambrian-system fossils as evidence of the first major advance of water across the continents at the onset of the Flood. The Cambrian Explosion Mystery Deepens: http://www.icr.org/article/cambrian-explosion-deepens

@icrscience

A recent report, published in the Proceedings of the National Academy of Sciences, details a comprehensive new study of the global Ediacaran sediments—those found just below the Cambrian.4 The goals of the research included searching for arthropod fossils in Ediacaran sediments and explaining why there are few, if any, arthropods below the Precambrian/Cambrian boundary.4

Allison Daley from the University of Lausanne, Switzerland, and her colleagues from the University of Oxford even considered the trace fossil (tracks and burrows) record of the arthropods and biases that may have been caused by various modes of preservation.4 They said that “To search for euarthropod fossils [trilobites, insects, crustaceans] earlier in the rock record requires comparable fossil preservation modes in the Precambrian, where exceptional preservation of soft-tissue abounds.”4

A news story stated,

It has been argued that the absence of euarthropods from the Precambrian Period, earlier than around 540 million years ago [the secular age assigned to the base of the Cambrian], is the result of a lack of fossil preservation. But the new comprehensive study suggests this isn’t the case.5

The scientists found there were similar opportunities for preservation in both the Cambrian and Precambrian rocks, and yet arthropod fossils and trace fossils are found only in the Cambrian sediments. “The lack of euarthropod body fossils in the Ediacaran biota is mirrored in all other preservational regimes in the Precambrian, including BSTs [Burgess Shale Type deposits], phosphatised microfossils, and chert deposits.”4

They also found that euarthropod trace fossils are “strikingly absent” during the Ediacaran period.4

Daley and her co-authors concluded by saying,

This constrains the appearance of the euarthropod stem lineage to no older than 550 Ma [about the time of the onset of the Cambrian system by secular estimates]. While each of the major types of fossil evidence (BSTs, trace fossils, and biomineralized preservation) have their limitations and are incomplete in different ways, when taken together they allow a coherent picture to emerge of the origin and subsequent radiation of total group Euarthropoda during the Cambrian.4

This study clearly demonstrates that the arthropods, like the trilobites, have no earlier ancestors in the rock record. They show up suddenly as part of the Cambrian Explosion just like all other major animal groups. As Daley and her colleagues have shown, the preservation opportunities in the Cambrian and the Ediacaran were exactly the same, but no arthropods appear in the rock record until the Cambrian. This study deepens the Cambrian Explosion enigma for secular scientists.

The global Flood remains the best explanation for the fossil record and the Cambrian Explosion. Tweet: The global Flood remains the best explanation for the fossil record and the Cambrian Explosion.

The Cambrian Explosion Mystery Deepens: http://www.icr.org/article/cambrian-explosion-deepens

@icrscience

The global Flood remains the best explanation for the fossil record and the Cambrian Explosion. Animal fossils merely appear in rocks in their order of burial. Evolutionary scientists can continue to search for ancestors in the rock record, but they will always come up empty-handed.

References

  1. Clarey, T. 2014. Trilobites: Sudden Appearance and Rapid Burial. Acts & Facts. 43 (2): 13.
  2. Thomas, B. Is the Cambrian Explosion Problem Solved? Creation Science Update. Posted on ICR.org December 12, 2011, accessed May 23, 2018.
  3. Thomas, B. Cambrian Fossil Intensifies Evolutionary Conundrum. Creation Science Update. Posted on ICR.org September 26, 2014, accessed May 23, 2018.
  4. Daley, A. et al. 2018. Early fossil record of Euarthropoda and the Cambrian Explosion. PNAS. 115 (21): 5323-5331.
  5. University of Oxford. 2018. Major fossil study sheds new light on emergence of early animal life 540 million years ago. Posted on eurekalert.org on May 21, 2018, accessed on May 23, 2018.

*Dr. Timothy Clarey is Research Associate at ICR and earned his doctorate in geology from Western Michigan University.

The Latest
NEWS
Snowflakes: A Symphony of Intricacy and Beauty
Snowflakes are among the most exquisite forms that nature has to offer, and no two flakes are alike. Several evolutionists have attempted to use the...

NEWS
Molecular Machines Twist Evolution
We read in the first chapter of Romans that God loves us so much that He has given us a general revelation of what He has created. Verse 19 states,...

CREATION PODCAST
America's Oldest National Park - Exploring the Unique Features...
America is home to stunning forests, mountains, monuments, and other wondrous features. The unique beauty of many of these locations have prompted...

NEWS
Binary Star Pair Detected Near Supermassive Black Hole
Astronomers have detected a likely binary star pair, designated as D9, orbiting the supermassive black hole Sag A* at the center of our Milky Way galaxy.1,2...

NEWS
The Jaw Drops an Evolutionary Explanation
The lepidosaurs are a large and diverse group of land vertebrates that include the snakes and lizards. There are almost 12,000 species of these animals....

NEWS
''Super-Puff'' Exoplanets: Evidence of Youth?
Astronomers have inferred the presence of a fourth exoplanet in the Kepler-51 star system.1,2 They made the discovery when the third exoplanet...

NEWS
A Fresh Start
"That ye put off concerning the former conversation the old man, which is corrupt according to the deceitful lusts; And be renewed in the spirit...

NEWS
January 2025 ICR Wallpaper
"For behold, I create new heavens and a new earth; And the former shall not be remembered or come to mind." (Isaiah 65:17 NKJV) ICR...

NEWS
All Things New
"And he that sat upon the throne said, Behold, I make all things new. And he said unto me, Write: for these words are true and faithful."...

ACTS & FACTS
Creation Kids: Neptune
by Renée Dusseau and Susan Windsor* You're never too young to be a creation scientist and explore our Creator's world. Kids, discover...