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本文通过实测地质剖面,在张广才岭南部杨木岗组中获得了富含疑源类在内的较多孢型化石。化石组合主要为光面球藻(未定多种)Leiosphaeridia sp.,瘤面球藻(未定种)Lophosphaeridium sp.,网面球藻(未定种)Dictyotidium sp.,丝状藻类碎片fragment of filamentous algae,底栖藻类碎片fragment of benthonic algae,始瓣藻(未定种)Priscogalea sp.,黑色穴面膜片Brocholaminaria nigrit