Tullimonstrum (Spanish Wikipedia)

Analysis of information sources in references of the Wikipedia article "Tullimonstrum" in Spanish language version.

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archive.org

Johnson, Ralph Gordon; Richardson, Eugene Stanley, Jr. (24 de marzo de 1969). «Pennsylvanian Invertebrates of the Mazon Creek Area, Illinois: The Morphology and Affinities of Tullimonstrum». Fieldiana Geology 12 (8): 119-149. OCLC 86328. [1]

nature.com

Johnson, Ralph Gordon; Richardson, Eugene Stanley, Jr. (24 de marzo de 1969). «Pennsylvanian Invertebrates of the Mazon Creek Area, Illinois: The Morphology and Affinities of Tullimonstrum». Fieldiana Geology 12 (8): 119-149. OCLC 86328. [1]

worldcat.org

Johnson, Ralph Gordon; Richardson, Eugene Stanley, Jr. (24 de marzo de 1969). «Pennsylvanian Invertebrates of the Mazon Creek Area, Illinois: The Morphology and Affinities of Tullimonstrum». Fieldiana Geology 12 (8): 119-149. OCLC 86328. [1]