Dakorhachis thambus
Late Cambrian
Weeks Formation
House Range, Utah, USA

Brand new, previously undescribed 20mm animal on 98mm slab. May be a stem group gnathiferan, making it among the earliest known member of the group which includes the chaetognaths. Extremely rare. So rare, in fact, Google it and you’ll see fewer listings than you will for former president Millard Fillmore. I know, a lot of weird animal names so read the paper below, published in 2020:

The original paper is here (PDF): Dakorachis thambus