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【Main Contents】
The gastropod fossils are found mostly in the Member 1 of the Shahejie
Zu, minor in the Dongying formation, rare in the Kongdian zu, the general
aspect of the gastropod fossils, most of them are characteristic of the
Orient, more or less shows an affinity with those in the coastal region
of south China. After preliminary examination, they amount to 237 species
and 92 genera (subgenera) within 39 families (subfamilies), including
224 new species, 15 new gnera, 2 new subgenera and 1 new family
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