Geological and Geographical Distribution of Fuhsin Conglomerate in Manchoukuo

Two Eobaatarid (Multituberculata; Mammalia) genera from the Lower Cretaceous Shahai and Fuxin Formations, northeastern Chinau

“…The Fuxin Formation is mainly composed of mudstones, sandstones and conglomerates, intercalated with many coal measures. Much of the formation has been interpreted as alluvial fan deposits (Morita, 1939;Muroi, 1940;Wang et al, 1989;Wu et al, 1992). Fossil mammals including eutriconodontans, "symmetrodontans," multituberculates reported in the present paper, and eutherians including Endotherium niinomii Shikama, 1947, have been found from several coaly horizons of the formation (e.g., Shikama, 1947;Wang et al, 1995;Kusuhashi, Hirasawa et al, 2007; with other vertebrate remains of fishes, turtles, lizards such as Teilhardosaurus carbonarius Shikama, 1947, anddinosaur teeth, bones, andfootprints (e.g., Shikama, 1947;Young, 1960;Wang et al, 1989).…”

“…KUSUHASHI ET AL.-EOBAATARIDS FROM CHINA 1265 Neither reliable radiometric ages nor index fossils have been reported from the Shahai and Fuxin formations. The Fuxin Formation used to be correlated with the Middle (e.g., Morita, 1939) or Upper Jurassic (e.g., Muroi, 1940;Shikama, 1947;Chen et al, 1980) by fossil plants and mollusks. Now the formation is considered to be Lower Cretaceous by many authors (e.g., Zhang, 1987;Chen, 1988;Wang et al, 1989;Yang and Li, 1997;Chen et al, 2006).…”

“…Major late Mesozoic strata distributed across western Liaoning Province include the Tuchengzi Formation (Tuchengzi Conglomerate in Lin, 1942 cited in Yang and Li, 1997), the Jehol Group (Jehol Series in Grabau, 1923) composed of the Yixian Formation (Yihsien Formation in Grabau, 1923) and Jiufotang Formation (Jiufotang Series in Endo, 1934), and the Shahai, Fuxin and Sunjiawan (Sunchiawan Series in Morita, 1939) formations, in an ascending stratigraphic order (Fig. 2).…”

“…Present materials were recovered from the Shahai Formation (Shahai Shale Formation in Muroi, 1940) of the Badaohao District (Heishan County) and the Fuxin Formation (Coal Series of Fuhsinhsien in Wang and Huang, 1929; Fu-hsin Series in Morita, 1939) of the Fuxin District, western Liaoning Province, northeastern China. In western Liaoning Province, the late Mesozoic non-marine sediments have a wide distribution (e.g., Wang et al, 1989;Yang and Li, 1997;Jiang and Sha, 2006;Fig.…”