TEM INVESTIGATION OF THE SHELL OF THE BRACHIOPOD THECOSPIRA TYROLENSIS (LORETZ): A CLUE TO UNDERSTANDING GROWTH AND REPLACEMENT OF PRISMATIC AND/OR FIBROUS LOW MG-CALCITE? (1990). Rivista italiana di Paleontologia e Stratigrafia, 96(1). https://doi.org/10.13130/2039-4942/9048