Fig. 3From: First steps in reconstructing Early Jurassic sea water temperatures in the Andean Basin of northern Chile based on stable isotope analyses of oyster and brachiopod shellsCathodoluminescence microscopy. a Well-preserved shell of Rudirhynchia aff. rudis from the Upper Pliensbachian (CH18-001); b Poorly preserved shell of Gryphaea cf. dumortieri from the Upper Pliensbachian (CH18-050)Back to article page