Fig. 3From: Early-Middle Permian palynoflora of Shandong Province, eastern North ChinaPhotomicrographs of a selection of spore and pollen fossils identified in samples from boreholes XB15 and DB2 in Shandong Province. a Calamospora breviradiata; b Calamospora sp.; c Calamospora hartungiana; d Calamospora minuta; e Convolutispora cerebra; f Convolutispora tessellata; g Crassispora adornata; h Cyclogranisporites aureus; i Cyclogranisporites micaceus; j Densosporites annulatus; k Florinites minutus; l Foveolatisporites junior; m Granulatisporites minutus; n Gulisporites cereris; o Gulisporites cochlearius; p Laevigatosporites minimus. Scale bars (in each) = 20 μmBack to article page