GigartinalesOrder
Child taxa
- Acrotylaceae
- Areschougiaceae
- Blinksiaceae
- Calosiphoniaceae
- Caulacanthaceae
- Corynocystaceae
- Cruoriaceae
- Cubiculosporaceae
- Cystocloniaceae
- Dicranemataceae
- Dumontiaceae
- Endocladiaceae
- Furcellariaceae
- Gainiaceae
- Gigartinaceae
- Gloiosiphoniaceae
- Haemeschariaceae
- Kallymeniaceae
- Mychodeaceae
- Mychodeophyllaceae
- Nizymeniaceae
- Phacelocarpaceae
- Phyllophoraceae
- Polyideaceae
- Rhizophyllidaceae
- Rissoellaceae
- Schmitziellaceae
- Solieriaceae
- Sphaerococcaceae
- Tichocarpaceae