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Swiss Journal of Geosciences
Fig. 21 | Swiss Journal of Geosciences

Fig. 21

From: Dienerian (Early Triassic) ammonoids from the Candelaria Hills (Nevada, USA) and their significance for palaeobiogeography and palaeoceanography

Fig. 21

Specimens with growth disturbance induced by epizoans: 1 “Koninckites” aff. kraffti Spath, 1934, PIMUZ28597. Specimen with preserved bivalve attached to the umbilicus. 1a Lateral view; 1b close-up view of the umbilicus with the bivalve and 1c without the bivalve. 2 Proptychites haydeni (Krafft, 1909), USNM542458; 2a lateral view (left); 2b lateral view (right); 2c apertural view; 2d ventral view. 3 Mullericeras spitiense (Krafft, 1909), JJ2030C, loc. JJ17-08; 3a lateral view (right); 3b lateral view (left); 3c apertural view; 3d ventral view. Asterisks indicate last septum where know

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