hydrocarbon exploration Argentina 8 Atlantic Ocean 4 Jurassic 4 Leptospira 4 Regional geology 4 Subandean Hills 4 Subandean Ranges 4 Yacimientos Petrolíferos Fiscales 4 ammonite 4 biography 4 geological survey 4 paleontology 4 regional geology 4 source rock 4 stratigraphy 4 taxonomy 4 Atlantic Ocean (Southwest) 2 Austral Basin 2 Austral-Magellan Basin 2 Colorado Basin [North America] 2 Cretaceous 2 Dinophyceae 2 Exploration 2 Hydrocarbons 2 Maldonado [Uruguay] 2 Patagonia 2 Punta del Este 2 Salado Basin 2 San Jorge Gulf 2