Lloyd, G.E.R. (1961). "The Development of Aristotle's Theory of the Classification of Animals". Phronesis. 6 (1): 59–81. doi:10.1163/156852861X00080. JSTOR4181685.
Coates, Michael I.; Ruta, Marcello; Friedman, Matt (2008). "Ever Since Owen: Changing Perspectives on the Early Evolution of Tetrapods". Annual Review of Ecology, Evolution, and Systematics. 39 (1): 571–592. doi:10.1146/annurev.ecolsys.38.091206.095546. ISSN1543-592X. JSTOR30245177.
Meunier, François J.; Laurin, Michel (January 2012). "A microanatomical and histological study of the fin long bones of the Devonian sarcopterygian Eusthenopteron foordi". Acta Zoologica. 93 (1): 88–97. doi:10.1111/j.1463-6395.2010.00489.x.
Lloyd, G.E.R. (1961). "The Development of Aristotle's Theory of the Classification of Animals". Phronesis. 6 (1): 59–81. doi:10.1163/156852861X00080. JSTOR4181685.
Coates, Michael I.; Ruta, Marcello; Friedman, Matt (2008). "Ever Since Owen: Changing Perspectives on the Early Evolution of Tetrapods". Annual Review of Ecology, Evolution, and Systematics. 39 (1): 571–592. doi:10.1146/annurev.ecolsys.38.091206.095546. ISSN1543-592X. JSTOR30245177.
Coates, Michael I.; Ruta, Marcello; Friedman, Matt (2008). "Ever Since Owen: Changing Perspectives on the Early Evolution of Tetrapods". Annual Review of Ecology, Evolution, and Systematics. 39 (1): 571–592. doi:10.1146/annurev.ecolsys.38.091206.095546. ISSN1543-592X. JSTOR30245177.