Redlichia chinensis
Redlichia chinensis is an extinct species of trilobite that existed from 526 million years ago to 513 million years ago in the early Cambrian period (4th stage). Ecology 
The species is a nektobenthic deposit feeder. History 
R. chinensis was discovered by Chang in 1966 in the Balang formation, China. 19 fossils have been discovered. Morphology 
R. chinensis has a wide cephalon with a border and the glaella tapers forwards. The hypostoma has been pushed through from the underside and the genal spines are not at the occipital edge. The thorax narrows to a small pygidium and the pleurae terminate in short spines. R. chinensis is 7.5 centimeters long. References 

Redlichiidae