Middle Cambrian Bradoriida (Arthropoda) from the Franconian Forest, Germany, with a review of the bradoriids described from West Gondwana and a revision of material from Baltica

摘要: Bradoriid arthropods (class Bradoriida) are described for the first time from lower–middle Cambrian boundary interval (regional Agdzian Stage) of Franconian Forest in eastern Bavaria, Germany. The specimens originate Tannenknock and Triebenreuth formations, which part a shallow marine succession deposited at margin West Gondwana. Five different forms have been distinguished, Indiana aff. dermatoides (Walcott), sp., Indota? Pseudobeyrichona monile sp. nov., an undetermined svealutid, all belong to families that previously reported typical However, generic level, taxa new region. is environments. So far it has Laurentia, Avalonia, Baltica, considered characterize paleogeographic vicinity continents. only recorded South China, its occurrence corroborates previous documentation China northern presence as “western” taxon among other “eastern taxa” confirms unique biogeographical position poorly known anderssoni (Wiman) minima Wiman late early Scandinavia restudied order re-evaluate two species refine definition Indiana. represents distinct Indiana, whereas I. pseudo-fossil.