Sarotrocercus is a small Cambrian arthropod known from Burgess Shale, reaching a centimetre or two in length (). Sarotrocercus is only known from 7 specimens. It may lie in the arthropod crown group, and a recent study has revised some points of its original description.
Sarotrocercus is a small Cambrian arthropod known from Burgess Shale, reaching a centimetre or two in length (). Sarotrocercus is only known from 7 specimens. It may lie in the arthropod crown group, and a recent study has revised some points of its original description.
== Morphology == Sarotrocercus had a head shield followed by a trunk of 10 or 11 segments and a telson featuring a series of spines on the end. A pair of big eyes at the end of stalks ventrally emerged from the front of the head. The head bore two pairs of sturdy appendages that are armed with rows of inner spines. At least the anterior 9 trunk segments each possess a pair of appendages, which are only known by lobe-like exopods that are fringed with setae.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).