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 o… More…
Source: icr.org
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