1. Proterozoic–Early Paleozoic evolution in western South America - a discussion;Aceñolaza;Tectonophysics,2002
2. Middle Cambrian to Middle Ordovician cyclic sedimentation, southern Rocky Mountains of Alberta;Aitken;Bull. Can. Petrol. Geol.,1966
3. Lower Ordovician Survey Peak and Outram formations, southern Rocky Mountains of Alberta;Aitken;Bull. Can. Petrol. Geol.,1967
4. Bioestratigrafía de conodontes de la Formación LasChacritas, Precordillera de San Juan, Argentina. Reunión de Comunicaciones de la Asociación Paleontológica Argentina, Mar del Plata;Albanesi;Ameghiniana,2000
5. Subspeciation within a punctuated equilibrium evolutionary event: Phylogenetic history of the Lower-Middle Ordovician Paroistodus originalis-P. horridus complex (Conodonta);Albanesi;J. Paleontol.,2000