Onychodus (Spanish Wikipedia)

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

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archive.org

Newberry, John Strong; Andrews, Ebenezer Baldwin; Orton, Edward (1870). Report of Progress in 1869. Reports of Progress. Ohio, USA: Ohio Geological Survey. p. 18.
Benton, M. J. (2005). «Early Palaeozoic Fishes». Vertebrate Palaeontology. Blackwell Publishing. p. 65. ISBN 0-632-05637-1.

«Taxon profile genera Onychodontidae». International encyclopedia of plants, fungi and animals. BioLib.cz.

Long, John (2001). «On the Relationships of Psarolepis and the Onychodontiform fishes». Journal of Vertebrate Paleontology 21 (4): 815-820. doi:10.1671/0272-4634(2001)021[0815:OTROPA]2.0.CO;2.

Hansen, Michael C. (1995). «Fossil fish found in American Aggregates Quarry (PDF)». Ohio Geology. Summer 95: 5-6. Archivado desde el original el 1 de enero de 2009.