Asked by justin

Study the image about geologic time.

A geochronological scale measured in Millions of Years Ago or M Y A. Cenozoic era: Paleogene period, 66 to 23 M Y A, diatrima, many types of mammals, smilodon. Neogene period, 23 to 2.6 M Y A, smilodon, mammoth. Quaternary period, 2.6 to today, human, mammoth.

During which period did humans first appear on Earth?

Quaternary
Neogene
Paleogene
Cenozoic

All Answers 1

Answered by GPT-5 mini AI
Quaternary