Table 1.

Diversity of Tr-J sporomorph and macrofossil assemblages at Astartekløft

	Sporomorphs								Macrofossils
Plant bed	1	1.5	2	3	4	5	6	7	1	1.5	2	3	4	5	6	7
No. samples	6	1	7	4	6	9	3	4	4	2	4	4	3	4	1	4
No. individuals	2379	361	2528	1475	2139	3206	1083	1408	153	55	248	556	547	361	126	821
S(obs)	44	30	45	41	46	42	35	47	11	7	11	9	11	15	11	8
Chao2(max )	48	—	50	43	51	43	39	52	—	—	—	—	—	—	—	—
Jackknife2(max )	53	—	54	48	56	46	46	58	—	—	—	—	—	—	—	—
Coleman(n=3)	40	—	40	40	42	37	35	45	—	—	—	—	—	—	—	—
Coleman(n=4)	42	—	42	41	44	39	—	47	—	—	—	—	—	—	—	—
Mean Salpha	29	30	31	27	29	25	23	33	7.78	6.27	6.73	4.84	8.18	7.99	11.00	5.51
Sbeta	15	0	14	14	17	17	12	14	3.22	0.73	4.27	4.16	2.82	7.01	0.00	2.49
Proportion Salpha	0.67	1.00	0.68	0.66	0.63	0.60	0.65	0.70	0.71	0.90	0.61	0.54	0.74	0.53	1.00	0.69
Proportion Sbeta	0.33	0.00	0.32	0.34	0.37	0.40	0.35	0.30	0.29	0.10	0.39	0.46	0.26	0.47	0.00	0.31
Dtotal	0.73	0.85	0.85	0.88	0.81	0.84	0.70	0.84	0.83	0.76	0.81	0.22	0.66	0.63	0.74	0.64
Mean Dalpha	0.70	0.85	0.83	0.79	0.75	0.80	0.69	0.83	0.77	0.73	0.74	0.21	0.65	0.60	0.74	0.60
Dbeta	0.03	0.00	0.02	0.09	0.05	0.04	0.01	0.01	0.05	0.03	0.07	0.00	0.02	0.03	0.00	0.04
Proportion Dalpha	0.96	1.00	0.98	0.89	0.94	0.95	0.98	0.99	0.93	0.96	0.91	0.98	0.97	0.96	1.00	0.94
Proportion Dbeta	0.04	0.00	0.02	0.11	0.06	0.05	0.02	0.01	0.07	0.04	0.09	0.02	0.03	0.04	0.00	0.06

S_(obs), number of taxa in all samples; S_alpha, number of taxa within samples; S_beta, among-sample diversity; D_total, Simpson’s diversity index for all samples; D_alpha, Simpson’s diversity index within samples; D_beta, among-sample Simpson’s diversity index.