[3] Sabal Trithrinax Itaya Sabinaria Chelyocarpus Cryosophila Schippia Thrinax Leucothrinax Hemithrinax Zombia Coccothrinax The Cryosophileae is one of eight tribes within subfamily Coryphoideae.

[8] However, the discovery of fossil remains of Trithrinax in Caribbean amber from the Tertiary indicates that this genus, now the southernmost member of the Cryosophileae, once existed further to the north.

This, coupled with the presence of Thrinax fossils from the Tertiary in Europe, and Cryosophila-like fossil pollen from Central America in the same time period, led Stine Bjorholm and colleagues to conclude that the current distribution of these palms represents northern hemisphere origin and a north-to-south migration, instead of the reverse.

The southernmost genus, Trithrinax, is found in subtropical parts of Argentina, Bolivia, Brazil, Paraguay and Uruguay, and includes some of the most cold-tolerant palms in the Americas.

Thrinax, Coccothrinax and Leucothrinax are widespread in the northern Caribbean; Zombia is restricted the island of Hispaniola and Hemithrinax to Cuba.