Taphonomy and palaeoecology of the green Devonian gypidulid brachiopods from the Aferdou El Mrakib, eastern Anti-Atlas, Morocco

Swiss Journal of Palaeontology

Table 1 Measurements of green values (from RGB-images) versus Fe content (wt %)

Stringocephalus	Fe	V	Devonogypa	Fe	V	Ivdelinia (1)	Fe	V	Ivdelinia (2)	Fe	V	Rhynchonellid	Fe	V
Object 301	38.44	27	Object 1	0.17	127	Object 1	0.07	145	Object 1	0.42	84	Object 1	0.97	76
Object 302	2.68	116	Object 2	0.60	141	Object 2	0.18	164	Object 2	0.38	91	Object 2	0.81	84
Object 303	1.58	120	Object 3	1.16	139	Object 3	0.88	82	Object 3	0.38	97	Object 3	0.25	108
Object 304	1.47	129	Object 4	0.42	134	Object 4	0.06	139	Object 4	0.48	104	Object 4	0.49	81
Object 305	1.38	126	Object 5	1.84	115	Object 5	0.18	134	Object 5	0.08	69	Object 5	0.00	78
Object 306	2.12	121	Object 6	2.13	126	Object 6	0.45	110	Object 6	0.04	77	Object 6	0.03	78
Object 307	2.56	136	Object 7	1.30	113	Object 7	1.42	94	Object 7	0.26	76	Object 7	0.22	58
Object 308	2.16	118	Object 8	1.17	158	Object 8	0.09	131	Object 8	1.12	67	Object 8	0.25	73
Object 309	1.70	139	Object 9	0.76	106	Object 9	0.00	78	Object 9	0.98	66	Object 9	0.63	59
Object 310	64.04	70	Object 10	1.79	92	Object 10	0.03	113	Object 10	0.46	56	Object 11	0.29	105
			Object 11	1.74	72	Object 11	0.05	164	Object 11	0.64	67	Object 12	0.10	93
			Object 12	2.10	58	Object 12	0.04	144	Object 12	0.42	65	Object 13	1.01	69
			Object 13	0.40	47	Object 13	0.01	106	Object 13	0.58	74	Object 14	0.27	79
			Object 14	0.48	52	Object 14	0.42	70	Object 14	0.17	77	Object 15	1.38	88
			Object 15	0.44	53	Object 15	0.29	149	Object 15	0.20	87	Object 16	0.58	87
									Object 16	0.47	73	Object 17	1.13	65
									Object 17	0.67	90	Object 18	1.15	100
									Object 18	0.30	63	Object 19	2.74	40
									Object 19	0.58	85	Object 20	0.01	68
									Object 20	0.96	88