Amber from Martigues-Terres d’Ocre locality (MTO1-3). A: plan of the locality with the three sites; B: excavations of the zone 2 in MTO2 site (white arrow: level rich in macro-remains of vertebrates, red arrow: level rich in amber grains); C: outcrop in MTO3 site; D: logs of the three sites MTO1-3 with occurrences of fossiles in each levels; E: outcrop in MTO1 site (white arrow: location of MTO2 site, “F”: fault); F-G: amber grains coming from the fossiliferous Level 3; H: thin sections of amber grains; I: SEM view of a grain with a thick peripheral cracked crust (arrow); J: SEM view of an inclusion resembling a spore; K: SEM view of the imprint of crystals of the cubic system. F-G: amber grains coming from the fossiliferous black level; H: thin sections of amber grains; I: SEM view of a grain with a thick peripheral cracked crust (arrow); J: SEM view of an inclusion resembling a spore; K: SEM view of the imprint of crystals of the cubic system. (MNHN and MHNA collections).