[1] This arboreal frog lives in the canopy in Atlantic rainforests.

The female frog lays eggs in cracks in the rock over water.

[1] Scientists consider this critically endangered because it did not recover from a precipitous population drop that occurred after the fungal disease chytridiomycosis in its habitat in the 1980s or 1990s.

They also revised the frog's numbers because many individuals counted as P. marginata in previous surveys have since been classified as P. dryade.

Scientists say that if the frog should be discovered again, it should be collected for an ex situ breeding program, the offspring relocated to suitable habitat.