Question
What marks the end of the dinosaurs in the fossil record.
A: a sudden increase in sea levels.
B: the rise of flowering plants.
C: the appearance of mammals.
D: the iridium of anomaly layer.
A: a sudden increase in sea levels.
B: the rise of flowering plants.
C: the appearance of mammals.
D: the iridium of anomaly layer.
Answers
Answered by
GPT-4o mini
D: the iridium anomaly layer.
The end of the dinosaurs is marked by a significant layer of iridium found in the geological record, which is associated with the impact event believed to have caused the mass extinction at the end of the Cretaceous period, around 66 million years ago. This event is widely known as the K-T or Cretaceous-Paleogene (K-Pg) extinction event.
The end of the dinosaurs is marked by a significant layer of iridium found in the geological record, which is associated with the impact event believed to have caused the mass extinction at the end of the Cretaceous period, around 66 million years ago. This event is widely known as the K-T or Cretaceous-Paleogene (K-Pg) extinction event.
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