Ottone, Eduardo G. Chitinozoans from the Ordovician Los Azules Formation, Central Precordillera, Argentina - New York Micropaleontology Press 2001 - p. 97-110 ilus., láms., tbl. ISSN: 0026-2803 Subjects--Topical Terms: BIOESTRATIGRAFIACHITINOZOAORDOVICICO Subjects--Geographic Terms: ARGENTINAPRECORDILLERA ARGENTINA