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In this timeline, Ma (for megaannum) means "million years ago," (for kiloannum) means "thousand years ago," and means "years ago." 4540 Ma – 4031 Ma.
Scientists have blended NASA images with geography and climate reconstructions to create an animation of the Earth as it would have appeared from space 500 million years ago.
You would not recognise Earth if you saw it 500 million years ago - the lands, oceans, climate and life were all very different. Scientists now have a new map of the deep history of Earth.
Earth looked very different long ago. Search for addresses across 750 million years of Earth's history.
Some 450 million years ago, ocean waters averaged 35°C to 40°C, more than 20°C warmer than today. Yet marine life thrived, even diversified.
New York City pinned on the Ancient Earth interactive map set to 120 million years ago. A new interactive map allows anyone to trace their hometown's geographic shifts through millions of years of Earth's history.
500 million years ago Fossil evidence shows that animals were exploring the land at this time. The first animals to do so were probably euthycarcinoids – thought to be related to centipedes...
In geochronology, time is generally measured in mya (million years ago), each unit representing the period of approximately 1,000,000 years in the past. The history of Earth is divided into four great eons , starting 4,540 mya with the formation of the planet.
About 500 million years ago, the Earth, for the first time, attained an breathable atmosphere. A perfect storm of conditions allowed photosynthetic plankton to release large amounts of oxygen...
A recent study presents a new curve of global mean surface temperature, revealing that Earth’s temperature has varied more than previously thought over much of the Phanerozoic Eon — a period marked by the diversification of life, colonization of land, and multiple mass extinctions.