The scientists' claim that an asteroid impact occurred after Layer C formed is supported by the evidence in the rock layers. At Location A, Layer A contains ammonite and fish fossils, while Layer C, which is above Layer A, contains a dinosaur fossil and plant fossils. This suggests a progression of life forms over time, with the presence of dinosaurs indicating a later geological period than when ammonites and fish were prevalent.
At Location B, Layer G, which is also above the layers present at Location A, contains the same types of fossils as Layer C—specifically, a dinosaur fossil and plant fossils. This indicates a similar time frame for the formation of these layers, suggesting that they were deposited after the same significant event.
The claim that an asteroid impact occurred after Layer C suggests that it caused mass extinction events, which is consistent with the disappearance of certain species, like the ammonites, and the introduction of others, such as dinosaurs. Given that both locations show similar fossil evidence (the presence of dinosaurs and plants in layers that are presumably deposited after the impact), this correlation supports the scientists’ assertion that the asteroid impacted the environment and affected fossil records in both locations after Layer C.
In summary, the fossils found in Layers C and G from both locations indicate that the ecological landscape remained similar post-impact and align with the timeline proposed by scientists regarding when the asteroid event occurred. Thus, the evidence from the rock layers supports the claim.