[1][2] In 2024, Mapalo, Wolfe & Ortega-Hernández described Aerobius dactylus as a new genus and species of tardigrade based on the smaller individual preserved in amber alongside Beorn.

The generic name, Aerobius, is derived from the modified Greek prefix "aero-", denoting "air", in reference to the holotype's apparent midair suspension in amber.

[4][1] Like in other tardigrades, the general body shape of Aerobius is compact and barrel-like, with four short pairs of claw-tipped lobopodous legs.

To determine the relationships of Aerobius, Mapalo, Wolfe & Ortega-Hernández (2024) phylogenetically analyzed a combination of morphological features and rRNA sequences.

These results are displayed in the cladogram below, with extinct species designated with a dagger (†):[1] Milnesium Eohypsibioidea Macrobiotoidea Ramajendas frigidus Isohypsibius prosostomus Halobiotus crispae Doryphoribius macrodon Hexapodibius micronyx †Paradoryphoribius Ramazzottius oberhaeuseri Microhypsibius truncatus Acutuncus antarcticus Calohypsibius ornatus Hypsibius dujardini †Beorn †Aerobius