Table 1. Allostratigraphic units and lithological levels (same nomenclature used to describe archaeo-palaeontological levels) for Galería, together with the position of the luminescence dating samples analysed in this study.

Allostratigraphic unit	Thickness (m)	Description	Sub-units description	Lithological/Archaeo-palaeontological level		Luminescence dating Samples
				NORTH	SOUTH
GV	5	Breccia composed of subangular gravels and blocks within a fine sandy silt and silty clay matrix [57]. Capped by a 1-1.5-m thick edaphic phase.		Sterile	Sterile
GIV	1.5 to 2	Southern sector: Breccia deposits made up of angular limestone clasts supported by fine gravels and silt (<10%). Central sector: Dominated by well-sorted very fine subangular gravels (<3 cm) with <10% silt matrix. These deposits alternate with silts and clays to the north. Northern sector: Laminated sandy silts and clays with layers of small gravels or cemented mud balls.		TG12	TN9	AT10-2
GIII	1 to 2	The base displays an apparently massive fine sand and silt-clay layer up to 35 cm-thick that contains, at the extremities, gravels and up to 9–12 cm clasts (to the north). This deposit is overlain by three distinct infill facies: Southern sector: Breccia composed of angular limestone clasts supported by fine gravels and silty clay (<10%). Central sector: Succession of layers (up to15 cm-thick) composed of small (<3 cm) limestone gravels supported by a silty clay matrix, which are overlain by massive but occasionally laminated silty clays (up to 10 cm thick). Northern sector: Sandy silts and clays.	GIIIb: Presence of highly calcitic sands [62]	TG11	TN8	ATG10-1 (GSU 2), ATG10-3 (GSU 7)
			GIIIa: Encompasses the lower half of GIII and is characterised by the absence of calcitic sands.	TG11, TG10A	TN8, TN7	ATG10-7
GII	1 to 2.5	Yellowish sandy silts and clays with a 20–30 cm-thick dark grey organomineral horizon (containing bat guano). The organimineral layers (TN2A and TN2B) are intercalated with localised speleothems and clays. This horizon is overlain by breccias of rounded clasts (eroded and with double patinas) and laminated yellowish sands and reddish clays and silts. The breccias are overlain by clasts supported by gravels and clays	GIIb: Allochthonous sediments of reddish colour displaying significantly less post-depositional alternation of bones and sedimentary structures compared to GIIa.	TG10B-D	TN6, TN5
		.	GIIa: Encompasses fine grained sediments and guano layers that display substantial post-depositional alteration and evidence of in situ lixivation (as in GIb), resulting in a lack of bone preservation in level TG7. Sub-unit contains microfacies composed of humate formation or peat, evidence of high biological activity and the presence of crandellite [62].	TG9, TG8, TG7	TN2A, TN2B	ATG10-8, ATG10-9, ATG10-10
GI	5	Internal facies (infill transported through the cave system rather than sourced from the immediate cave exterior). Laminated sands and silts with occasional planar and cross-stratification [57]. Deposition occurred prior to the roof collapse; as such this unit does not contain any fossils or archaeological remains.	GIb: Sands and silts with interstratified, sporadic speleothems and <4 cm-thick guano layers forming irregular laminar sequences [57]. High proportion of crandallite (3–30%) indicative of phosphate leaching from heavily altered bone and guano layers [57], [61].	Sterile	Sterile	ATG10-4, ATZ10-4, ATZ10-3
			GIa: Similar to GIb but separated by an unconformity. Palaeomagnetism indicates reversed polarity orientation.	Sterile	Sterile

Based on [12], [15], [57]–[59], [62].