Blow, W. H. (1959). Age, correlation and biostratigraphy of the Upper Tocuyo (San Lorenzo) and Pozon formations, Eastern Falcon, Venezuela. Bulletins of American Paleontology. 39: 67-251.
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Blow, W. H.
1959
Age, correlation and biostratigraphy of the Upper Tocuyo (San Lorenzo) and Pozon formations, Eastern Falcon, Venezuela