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Phaethon is the only genus of the family Phaethontidae, Tropicbird Phaethontidae.

1/ Red-billed tropicbird (Chim nhiệt đới, Phaethon aethereus)

The scientific name Phaethontiformes comes from the Ancient Greek word Φαέθων (Phaethon), meaning "sun". The order's name is derived from the genus name Phaethon, which refers to the tropicbirds, so the full meaning connects to the "sun". 

Tropicbirds are a family, Phaethontidae, of tropical pelagic seabirds. They are the sole living representatives of the order Phaethontiformes.

The scientific name Phaethontiformes comes from the Ancient Greek word Φαέθων (Phaethon), meaning "sun". The order's name is derived from the genus name Phaethon, which refers to the tropicbirds, so the full meaning connects to the "sun". 

Red-billed tropicbird 
(Chim nhiệt đới, Phaethon aethereus)

The red-billed tropicbird (Phaethon aethereus) belongs to the tropicbird family Phaethontidae. 
The bird species ranges across the tropical Atlantic, eastern Pacific, and Indian Oceans. 

Phaethontiformes, Phaethontidae, Phaethon: from the Greek word phaethōn (φαέθων), meaning "shining one" or "sun," linked to the myth of Phaethon, son of the sun god Helios, and describes the radiant, sun-like appearance of tropicbirds. 

Aethereus (Latin) means ethereal, heavenly, celestial, divine, or lofty, referring to the upper air or sky, derived from the Greek word aithérios (αἰθέριος) meaning "of the upper air" or "ethereal," stemming from aether (αἰθήρ), the pure, bright upper air.