Fig.1
![Fig.1](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs40851-019-0136-0/MediaObjects/40851_2019_136_Fig1_HTML.png)
Morphology of Notostraca oleseni (SMNS 70488) from the Yixian Formation of north-eastern China (Lower Cretaceous, 125–121 million years). a Notostraca oleseni overview; b as A but with labeled structures and color markings; c Detail of trunk segments; d Detail of telson; e Detail of furcal rami; at, anterior thoracopod; fr, furcal rami; no, notch; pt, posterior thoracopods; sh, shield; sp, subfrontal plate; te, telson; ts, trunk segments