Placodermi from the Early Devonian Kess-Kess mounds of Hamar Laghdad, Southern Morocco

摘要

Late Devonian placoderms from Morocco are known since the 1930s and were described in detail. Earlier collections and descriptions, however, demonstrated the range of placoderm fossils in Morocco from the Emsian up to the Famennian. Subsequently, more material was discovered and research focused on the description of new anatomical details visible after applying acid preparation, mainly of Early Devonian material. The distribution of placoderm remains and occurrence in association with Kess-Kess mud mounds at Hamar Laghdad is not yet mentioned in detail in the literature and some diagnostic remains of Antineosteus lehmani arc described herein for the first time from this locality in the Tafilalt.