Siphonotretida
| Siphonotretida Temporal range: | |
|---|---|
| "Schizambon" [sic] perspinosum, a siphonotretid from the Upper Ordovician of Oklahoma | |
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Brachiopoda |
| Class: | Lingulata |
| Order: | †Siphonotretida Kuhn, 1949 |
| Superfamily: | †Siphonotretoidea Kutorga, 1848 |
| Family: | †Siphonotretidae Kutorga, 1848 |
Siphonotretida is an extinct order of linguliform brachiopods in the class Lingulata. The order is equivalent to the sole superfamily Siphonotretoidea, itself containing the sole family Siphonotretidae. Siphonotretoids were originally named as a superfamily of Acrotretida, before being raised to their own order.