1. Late Cretaceous-early Tertiary molluscan biogeography of the southern circum-Pacific;Zinsmeister;Journal of Paleontology,1982
2. Aves of the Santa Cruz beds;Sinclair;Reports of the Princeton University Expeditions to Patagonia,1932
3. Paleoecologia y paleofitogeografia de las tafofloras del Cenofitico de Argentina y areas vecinas;Romero;Amegheniana,1978