Contribuição á paleontologia do valle do Amazonas 
Series: Its Boletim; n. 11
Publisher: Imprensa nacional
Published: 1924
Place of publication: Rio de Janeiro
Language: por
Number of pages: 52
Subjects: Paleontology -- Brazil -- Amazon River Valley.
Notes: At head of title: Ministerio da agricultura, industria e commercio ... Serviço geologico e mineralogico do Brasil ...