The most famous members of the classification are flukes and tapeworms.
It has virtually no fossil record although eggs from members of this phylum have often been found in Egyptian mummies and fossilized sloth dung. They are both triploblastic and bilaterally symmetrical, the first animals to be so. Its subdivisions include Planarians, and all members respire by diffusion. The most famous members of the classification are flukes and tapeworms. FTP identify this phylum commonly known as flatworms.
It has virtually no fossil record although eggs from members of this phylum have often been found in Egyptian mummies and fossilized sloth dung.
{Platyhelminthes} (prompt on flatworm).