If you confine the beginning of the Anthropocine to Post World War II then, regardless of the observable effect of the dominant lifeform on the global climate, it avoids the effects on the landscape.
The temperature and composition of the atmosphere may not have spiked in the same way that atomic testing caused spikes in the 50's did but the human population redefined and changed the entire globe bar the South Pole beginning around 15,000 years ago.