Sandoval Gabarrón, José and Henriques, María Helena Paiva and Chandler, Robert B. and Ureta Gil, María Soledad (2012) Latest Toarcian-earliest Bajocian (Jurassic) Grammoceratinae (Hildoceratidae, Ammonitina) of the western Tethys: Their palaeobiogeographic and phylogenetic significance. Geobios, 45 . pp. 109-119. ISSN 0016-6995
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