Vol. 77 No. 2 ACTA GEOLOGICA SINICA June 2003 141 Kalligrammatid Lacewings from the Upper Jurassic Daohugou Formation in Inner Mongolia, China ZHANG Junfeng Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing, Jiangsu 21 0008, E-mail:
[email protected] Abstract A new species, referable to a new genus, is erected, and named the Sinokalligramma jurassicum gen. et sp. nov. It is the second finding of kalligrammatids in the Daohugou Formation. The origin and migration of the family Kalligrammatidae are discussed. The geological age and stratigraphic correlation of the Daohugou and Karabastau Formations are briefly reviewed and reassessed. Key words: kalligrammatid lacewings, new taxa, age, origin and migration, Jurassic, Inner Mongolia, China 1 Introduction animal and botanic fossils to be of the known Barremian Yixian Formation (Wang et al., 2000; Wang, 2000). Later, Kalligrammatids belonging to the family they classified the rocks as the Early Cretaceous basal Kalligrammatidae within Neuroptera, Insecta are extinct, parts of the Yixian Formation or Dabeigou Formation, an specialized and large insects that lived during the underlying stratigraphic unit of the Yixian Formation Mesozoic. Up to date, twenty-one species, referable to (Wang et al., 2002). Others argued that they are of the Late eleven genera, are recognized as kalligrammatids Aalenian or Early Bajocian Jiulongshan Formation @en throughout eastern Asia, central Asia and western Europe and Oswald, 2002), or Upper Jurassic (Ji and Yuan, 2002). (Scudder, 1886; Walther, 1904; Handlirsch, 1906, 1919; On the basis of an analysis of new biostratigraphic data, Cockerell, 1928; Martynova, 1947; Panfilov, 1968, 1980; Zhang (2002) believed that fossil entomofaunas in the Ponomarenko, 1984, 1992; Janembowski, 1984, 2001; Daohugou and Karabastau Formations in Karatau, Whalley, 1988; Carpenter, 1992; Lambkin, 1994; Ren and Kazakhstan can be correlated, and they are Guo, 1996; Ren and Oswald, 2002).