Giganthorhynchidae
| Giganthorhynchidae | |
|---|---|
| Gigantorhynchus ortizi | |
| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Acanthocephala | 
| Class: | Archiacanthocephala | 
| Order: | Gigantorhynchida Southwell and Macfie, 1925 | 
| Family: | Giganthorhynchidae Hamann, 1892 | 
Gigantorhynchida is an order containing a single family, Gigantorhynchidae of Acanthocephala (thorny-headed worms, also known as spiny-headed worms) that parasitize vertebrates by attaching themselves to the intestinal wall of their host. There are over 60 species classified into three genera in Gigantorhynchida Gigantorhynchus, Intraproboscis, and Mediorhynchus.