Published December 18, 2014 | Version v1
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Morphology and histology of dorsal spines of the xenacanthid shark Orthacanthus platypternus from the Lower Permian of Texas, USA: Palaeobiological and palaeoenvironmental implications

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Beck, Kimberly G., Soler-Gijón, Rodrigo, Carlucci, Jesse R., Willis, Ray E. (2016): Morphology and histology of dorsal spines of the xenacanthid shark Orthacanthus platypternus from the Lower Permian of Texas, USA: Palaeobiological and palaeoenvironmental implications. Acta Palaeontologica Polonica 61 (1): 97-117, DOI: 10.4202/app.00126.2014, URL: http://dx.doi.org/10.4202/app.00126.2014

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