Rhabdopleurida

Rhabdopleurida
Temporal range:
Various members of Rhabdopleuridae
Scientific classification
Kingdom: Animalia
Phylum: Hemichordata
Class: Pterobranchia
Subclass: Graptolithina
Order: Rhabdopleurida
Fowler, 1892
Family: Rhabdopleuridae
Harmer, 1905
Genera

See Genera

Synonyms
  • Order
    • Stolonoidea Kozlowski, 1938
  • Family
    • Graptovermidae Kozlowski, 1949
    • Idiotubidae Kozlowski, 1949
    • Rhabdopleuritidae Mierzejewski, 1986
    • Rhabdopleuroididae Mierzejewski, 1986
    • Stolonodendridae Bulman, 1955

Rhabdopleurida is one of three orders in the class Pterobranchia, which are small, worm-shaped animals, and the only surviving graptolites. Members belong to the hemichordates. Species in this order are sessile, colonial, connected with a stolon, living in clear water and secrete tubes called tubarium. They have a single gonad, the gill slits are absent and the collar has two tentaculated arms. Rhabdopleura is the best studied pterobranch in developmental biology.

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