About 17 species: mainly neotropical, but with outliers in Africa, Asia, and Australasia; one species in China.

主要分布在新大陆热带区，但是在非洲，亚洲和澳大拉西亚也有零星分布；中国有1种。

The styles of the detachment structure are short antiform and synform structure mainly, and dome structure, nappe outlier and nappe tectonic window too.

滑脱断裂样式，以短轴背形、向形为主，另有穹窿、滑来峰、滑覆窗。