Gnathostomulid
<tr><th bgcolor=pink>Scientific classification
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<tr><td>Kingdom:<td>Animalia
<tr><td>Phylum:<td>Gnathostomulida
<tr><td>Order:<td>Gnathostoma
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Gnathostomulids, or jaw worms, are a small phylum of microscopic marine animals. They appear closely related to rotifers and their allies, together making up the Gnathifera. Gnathostomulids have no fossil record.