👉 The Cambrian period, also known as the Paleogene or the Cambodian period, is a geologic era that spans from around 543 to 285 million years ago. It marks the end of the Eocene Epoch and the beginning of the Mesozoic Era. During this period, the Earth's climate was significantly changed due to the release of carbon dioxide into the atmosphere by plants during the last ice age (around 600,000-5
