[3] It is endemic to Brazil and known from Rondônia, northwestern Mato Grosso, Pará, and Tocantins.

The tympanum is visible as a depression in skin (hence the specific name concavitympanum, from Latin concavum for concave).

The upper eyelids have large, irregular warts laterally, becoming less prominent medially.

Symmetric crests of warts run from the behind the eyelids to the sacral area.

[2] Proceratophrys concavitympanum have been found in forest environments along margin of a permanent pond,[2] and near or in small temporary streams with sandy beds.