【摘要】 本文描述古蝉科化石2新属、6新种，即Liaocossushuegen.etsp.nov.,L.beipiaoensisgen.etsp．nov，L．exiguusgen．etsp．nov，L．fengningensisgen．etsp．nov，L．Pingquanensisgen.etsp.nov.，Miracossusingentiusgen．etsp．nov.。这批化石保存有完整的虫体标本，使作者能够进一步研究古蝉类化石的虫体特征。化石采于冀北和辽西晚侏罗世义县组地层中，保存在中国地质博物馆。更多还原

【Abstract】 Two new genera and six new species of Palaeontinidae are named and described: Liaocossus hui gen. et sp. nov., L. beipiaoensis gen. et sp. nov., L. exiguus gen. et sp. nov., L.fengningensis gen. et sp. nov.. L. pingquanensis gen. et sp. nov. , and Miracossus ingentius gen. et sp. nov.. The entire body of these new fossils are perfectly preserved and enable us to fix accurately the body characteristics of primitive palaeontinids. All the specimens were collected from Late Jurassic Yixian Formation of Northern Hebei and Western Liaoning Provinces in China.更多还原