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Table 4 Comparison of spores and pollen contents (relative abundance) of Assemblage II from the Permian Shanxi Formation in Shandong Province, North China

From: Early-Middle Permian palynoflora of Shandong Province, eastern North China

Location (see Fig. 1b for reference)

Spores and pollen assemblage

Relative abundance of Azonotriletes

(%)

Relative abundance of Zonotriletes

(%)

Relative abundance of Monoletes

(%)

Relative abundance of Gymnosperm pollen

(%)

Jiyang coalfield, Shandong Province

Cyclogranisporites–Granulatisporites–Laevigatosporites

45.6

10.2

24.7

12.7–30.5

Liaocheng coalfield, Shandong Province

Gulisporites cochlearius–Sinulatisporites sinensis

54.4

19.7

17.3

1.7–26.6

Feicheng coalfield, Shandong Province

Gulisporites cochlearius–Sinulatisporites sinensis

57.2–78.4

2.1

20.0

24.4–38.8

Xinwen coalfield, Shandong Province

Gulisporites cochlearius–Sinulatisporites sinensis

55.0–68.9

7.0

14.0

16.4

Boreholes XB15 and DB2 (This study)

Gulisporites–Sinulatisporites

59.8

13.6

20.7

5.9

  1. Note: Data of Jiyang, Liaocheng, Feicheng, and Xinwen coalfields are from Zhao et al. (2006)