Cephalodiscida
| Cephalodiscida Temporal range:
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|---|---|
| Cephalodiscus dodecalophus | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Hemichordata |
| Class: | Pterobranchia |
| Order: | Cephalodiscida Fowler, 1892 |
| Families | |
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| Synonyms | |
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Cephalodiscida is one of two orders in the class Pterobranchia, which are small, worm-shaped animals. Members belong to the hemichordates. Species in this order are sessile, living in clear water and secrete tubes on the ocean floor.