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1.- Graptolites and trilobites from the Eusebio Ayala Formation (Hirnantian?-early Llandovery), Parana Basin, eastern Paraguay
Wiley; Chichester; GBR; United Kingdom, 2013
Lower Palaeozoic fossils, biostratigraphy and events from western Gondwana
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2.- SILURIAN (LLANDOVERY) MONOGRAPTIDS FROM THE VARGAS PEÑA FORMATION (PARANA BASIN, EASTERN PARAGUAY)
2008
LOWER PALEOZOIC BIOSTRATIGRAPHY OF SOUTH AMERICA: NEW CONTRIBUTIONS AND ADVANCES
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