The highlands and escarpments of Angola extend into the country's northern province, Uíge. The mountain ranges and scattered inselbergs there are characterised by small-scale geomorphological diversity that in turn supports a rich biodiversity, and together make up the Serra do Pingano Forest Ecosystem (SPFE). Drawing on previous studies, this paper briefly describes various taxonomic groups (fungi, Trachaeophyta, Bryophytes, Odonata, butterflies, moths, amphibians, reptiles, birds and mammals) of the SPFE in terms of their diversity and endemism rates. The initial results presented show the need to fill the existing data gaps and point to the importance of a conservation status for the SPFE. Keywords: Angola, biodiversity, endemism, escarpments, highlands, Serra do Pingano Forest Ecosystem.