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Schneider, J.W. & Hampe, O. & Soler-Gijón, R. (2000)
The Late Carboniferous and Permian: Aquatic vertebrate zonation in Southern Spain and German basins. Courier Forschungsinstitut Senckenberg, 223, 543–561

Ginter, M. (2022)
The biostratigraphy of Carboniferous chondrichthyans. In S.G. Lucas, J.W. Schneider, X. Wang, & S. Nikolaeva (Eds.), The Carboniferous Timescale. Geological Society, London, Special Publications, 512, Article SP512-2020-91
DOI: 10.1144/SP512-2020-91