| Megabalanus Temporal range:
| |
|---|---|
| |
| Fossilized M. tintinnabulum shells | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Thecostraca |
| Subclass: | Cirripedia |
| Order: | Balanomorpha |
| Family: | Balanidae |
| Subfamily: | Megabalaninae |
| Genus: | Megabalanus Hoek, 1913[1] |
Megabalanus is a genus of barnacles in the family Balanidae. Members of the genus grow to 7 cm (2.8 in) in length and inhabit the lower intertidal zone.