Calyptothecium duplicatum
- kingdom: Plantae
- phylum: Bryophyta
- class: Bryopsida
- order: Leucodontales
- family: Pterobryaceae
- genus: Calyptothecium
- species: Calyptothecium duplicatum
- Ibatiba
Espírito Santo
Brazil- San Rafael
Alajuela- La Asunción
- San Antonio
Heredia
Costa Rica- Río Limpio
Elías Piña
Dominican Republic- Tuzamapan
Veracruz
Mexico