Trilobites are an extinct group of marine arthropods that first appeared in the Early Cambrian. They left many beautifully preserved examples of their three-lobed exoskeletons in the fossil record. Trilobites — in all their many wonderful forms — lived in our ancient oceans for more than 270 million years. The last of their lineage went extinct at the end of the Permian, 252 million years ago.
No comments:
Post a Comment
Note: Only a member of this blog may post a comment.