Brachiopods, crustaceans, vertebrates, and charophytes from the Devonian Ly Hoa, Nam Can and Dong Tho formations of central Vietnam

New vertebrate remains are described from the Ly Hoa Formation (Quang Binh Province, Central Vietnam). They provide further information about the morphology and phylogenetic position of the antiarch Vukhuclepis lyhoaensis within the Yunnanolepididae, the first evidence for a Petalichthyida, a