Eoraptor has no clavicles.
Ancestors had clavicles. At least (= at present only) two descendants, Massospondylus (Yates and Vasconcelos 2005) and Psittacosaurus had tiny clavicles. So what happened to the clavicles in Eoraptor? Did they leave a trace of their disappearance?
Maybe the clavicles left markers of their departure.
If so one of those markers remains on the coracoid, another on the scapula. Or not. Just a guess at this point, if real. So this was a search with essentially no substantial results. Sometimes that happens.
Sereno PC, Forster CA, Rogers RR and Moneta AM 1993. Primitive dinosaur skeleton form Argentina and the early evolution of the Dinosauria. Nature 361, 64-66.
Sereno PC, Martínez RN and Alcober OA 2013. Osteology of Eoraptor lunensis (Dinosauria, Sauropodomorpha). Basal sauropodomorphs and the vertebrate fossil record of the Ischigualasto Formation (Late Triassic: Carnian-Norian) of Argentina. Journal of Vertebrate Paleontology Memoir 12: 83-179 DOI:10.1080/02724634.2013.820113
Yates AM and Vasconcelos CC 2005. Furcula-like clavicles in the prosauropod dinosaur Massospondylus. Journal of Vertebrate Paleontology. 25 (2): 466–468. doi:10.1671/0272-4634(2005)025[0466:FCITPD]2.0.CO;2