[2] In 2024, additional remains were described from Xiaoshiba Lagerstätte, which were proposed as a new species, O. qionqii, after the mythical, man-eating Qiongqi, one of four ancient creatures in Chinese mythology, whose name means "distressingly strange".

The preserved mouthparts would have formed a short muscular, potentially protrusible pharynx surrounded by circles of spiny sclerites, which were reminiscent of the scalids of priapulids, kinorhynchs, and loriciferans.

The mouth, unlike the oral cones of radiodonts, was arranged bilaterally, forming two laterally opposing sets of "jaws", composed of a number of tooth-plates, which are further divided into a basal plate and a nail-like spine.

The frontal appendages are known from their distal-most portions, which appear as wide, heavily sclerotized bases, bearing a bilaterally symmetrical series of long talons.

Additionally, elements which may represent bilaterally symmtrical head carapaces, and a number of small setal-blade like strucures, have been found associated with the mouthparts and talons.