[1][2][3][4] The fossils were first studied by paleoentomologists Vincent Perrichot, Wang Bo and Michael Engel with the group's 2016 type description of the new genus and species being published in the journal Current Biology.

[1] Ceratomyrmex is one of several ant genera described from Burmese amber, the others being Burmomyrma, Camelomecia, Gerontoformica, Haidomyrmex, Linguamyrmex , Myanmyrma, and Zigrasimecia.

Based on the behaviors of modern trap-jaw ant genera such as Odontomachus, Anochetus and Acanthognathus poinari, Perrichot et al. noted that the setae on the horn would provide a soft cushion for moving pupae and larvae in a nest.

[1] The workers of Ceratomyrmex range between approximately 4.5–5.9 mm (0.18–0.23 in) long, while queens and drones were unknown at the time of description.

The underside of the horn is covered in a dense arrangement of long setae that trail down from the apex into a single row towards the base.