Millotauropus

Millotauropus is a genus of pauropods in the monotypic family Millotauropodidae in the monotypic order Hexamerocerata. The order Hexamerocerata includes only eight species and was created in 1950 to contain the newly discovered genus Millotauropus, which was found to have so many distinctive features as to warrant placement in a separate order. Before the discovery of Millotauropus, for example, pauropods were thought to have no more than ten leg pairs, but adults in the order Hexamerocerata have eleven pairs of legs. Although Millotauropus is the only described genus within Hexamerocerata, there may be another undescribed genus within a separate but related family.

== Description == Pauropods in the order Hexamerocerata are characterized by telescopic antennae with six stalk segments, unlike all other pauropods (those in the larger order Tetramerocerata), which have antennae that are not telescopic and have only four stalk segments as adults. Two antennal branches emerge from the distal end of the fourth segment in Tetramerocerata, one dorsal and one ventral; in Hexamerocerata, however, the dorsal branch emerges from the distal end of the fifth segment, and the ventral branch emerges from the distal end of the sixth segment. In Hexamerocerata, the sixth segment also features a sense organ shaped like a candelabra. In Hexamerocerata, each antennal branch features a long flagellum; in all other pauropods, however, the ventral branch features two flagella, whereas the dorsal branch features only one. The lateral sides of the head feature two large eye-like organs, and in Hexamerocerata, these temporal organs are shaped like cups or umbrellas attached to a shallow depression in the head; in all other pauropods, these organs are flat or somewhat convex.