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While surveying the underground water resources in northwesternHonan in the winter of 1933,the writer accompanied by Y.S.Wu and C.T.Ma,gave special attention to the collecting of fossils from the wide-spreadMiddle Ordovician Machiakou Limestone.Among our collections thereis a single specimen of trilobite which is described in the present paper.In addition to the trilobite,there are cephalopods,crinoids and stroma-toporoids which still await identification.
While surveying the underground water resources in northwesternHonan in the winter of 1933, the writer accompanied by YSWu and CTMa, gave special attention to the collecting of fossils from the wide-spreadMiddle Ordovician Machiakou Limestone .Among our Collections thereis a single specimen of trilobite which is described in the present paper. addition to the trilobite, there are cephalopods, crinoids and stroma-toporoids which still await identification.