Jinguofortisidae is an extinct family of early pygostylian dinosaurs known from the Early Cretaceous. They were found in northern China.
Jinguofortisidae is an extinct family of early pygostylian dinosaurs known from the Early Cretaceous. They were found in northern China.
==Description== The Jinguofortisidae are distinguished from other non-ornithothoracine avialans by the following features: the scapula and coracoid fused into a scapulocoracoid; a boomeranged-shaped furcula without a hypocleidium; proximal margin of humerus concave centrally; deltopectoral crest large and not perforated; minor metacarpal markedly bowed caudally; alular digit terminating at the level of the distal end of major metacarpal; and proximal phalanx of the major digit longer than the intermediate phalanx.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).