''Westergaardites'' is an
Upper Cambrian
The Furongian is the fourth and final epoch and series of the Cambrian. It lasted from to million years ago. It succeeds the Miaolingian series of the Cambrian and precedes the Lower Ordovician Tremadocian Stage. It is subdivided into three sta ...
trilobite that is known from the Eastern
Tian Shan (Central Asia). It is related to ''
Triarthrus'', but can easily be distinguished from it by an extremely long exoskeleton, anteriorly placed eyes, a thorax of 19 segments with an extremely wide axis, and very narrow pleural regions, pleural spines, and a pygidium with marginal spines.
References
Olenina
Ptychopariida genera
Cambrian trilobites of Asia
{{Ptychopariida-stub
Cambrian genus extinctions