Radiocarbon dating fossils

The oldest uncontested fossils on earth are 2 billion year-old stromatolites in Minnesota, Wisconsin, and Ontario.Composed of layers of sediments laid down by colonies of cyanobacteria, stromatolites still exist, but are quite rare today.

What scavengers like vultures and hyenas leave behind, flies, ants, worms, and bacteria quickly consume.

A body fossil is the physical remains of an animal. Some very small organisms, called microbacteria, leave behind microscopic particles called filaments.

It is produced in the upper atmosphere by radiation from the sun.

Find additional lessons, activities, videos, and articles that focus on relative and absolute dating.

Radiocarbon dating can still be considered a reliable method for determine the age of artefacts and materials, according to a study published this week.

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