The fossil shells in this photo look much like clams or oysters, but they are remains of a totally different group of organisms. What are they?
Answer:
These are fossils of brachiopods. While they look like relatives of clams and oysters, they belong to a totally different phylum, with a totally different internal structure.
Brachiopods are still around today, but they are not nearly as common as they were when this limestone was deposited.
Brachiopods are still around today, but they are not nearly as common as they were when this limestone was deposited.
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