Both the genus and species were described by paleontologist Joan Pons-Moyà in 1987 based on material from Casa del Acero in Spain, which is dated back to the Upper Miocene (approximately 8.7 to 5.332 million years ago).

[1][2] Spanish palaeontologist Joan Pons-Moyà described the genus and species in 1987 based on fossils from Casa del Acero in Spain.

The specific epithet acerensis meaning "from Casa del Acera", the type locality.

[1] A later study further noted that F. acerensis was a highly derived metailurin with a relatively slender mandible.

Which was noted to be much larger than the canines of Yoshi garevskii and comparable to those of Metailurus major and Stenailurus telihardi.