Impressions of tropical swamp plants were observed on rocks in polar regions. The impressions were dark black imprints, which means the fossils are examples of carbonization, mineralization, and trace fossils.
Explanation:
The fossils tell us that polar regions had tropical plants that could grow in ice,
might have had a different climate in the past, and will have abundance of vegetation.
Impressions of tropical swamp plants were observed on rocks in polar regions. The impressions were dark black imprints, which means the fossils are examples of trace fossils . The fossils tell us that polar regions had tropical plants that could grow in ice.
