F. Spindler, D. Scott & R. R. Reisz: New information on the cranial and postcranial anatomy of the early synapsid Ianthodon schultzei (Sphenacomorpha: Sphenacodontia), and its evolutionary significance. In: Fossil Record, Band 18, 2015, S. 17–30, (pdf 9 Ekim 2020 tarihinde Wayback Machine sitesinde arşivlendi.).
doi.org
dx.doi.org
F. Spindler: The skull of Tetraceratops insignis (Synapsida, Sphenacodontia). In: Palaeovertebrata, Band 43, Nummer 1, 2020, Artikel e1, DOI:10.18563/pv.43.1.e1.
J. Fröbisch, R. R. Schoch, J. Müller, T. Schindler & D. Schweiss: A new basal sphenacodontid synapsid from the Late Carboniferous of the Saar-Nahe Basin, Germany. In: Acta Palaeontologica Polonica, Band 56, Nummer 1, 2011, S. 113–120, DOI:10.4202/app.2010.0039.
researchgate.net
R. R. Reisz, D. S. Berman & D. Scott: The cranial anatomy and relationships of Secodontosaurus, an unusual mammal-like reptile (Synapsida: Sphenacodontidae) from the early Permian of Texas. In: Zoological Journal of the Linnean Society, Band 104, 1992, S. 127–184, (Digitalisat 16 Temmuz 2021 tarihinde Wayback Machine sitesinde arşivlendi.).
J. Liu, B. Ribidge & J. Li: A new specimen of Biseridens qilianicus indicates its phylogenetic position as the most basal anomodont. In: Proceedings of the Royal Society B: Biological Sciences, Band 277, 2010, S. 285–292, (Digitalisat).
web.archive.org
R. R. Reisz, D. S. Berman & D. Scott: The cranial anatomy and relationships of Secodontosaurus, an unusual mammal-like reptile (Synapsida: Sphenacodontidae) from the early Permian of Texas. In: Zoological Journal of the Linnean Society, Band 104, 1992, S. 127–184, (Digitalisat 16 Temmuz 2021 tarihinde Wayback Machine sitesinde arşivlendi.).
F. Spindler, D. Scott & R. R. Reisz: New information on the cranial and postcranial anatomy of the early synapsid Ianthodon schultzei (Sphenacomorpha: Sphenacodontia), and its evolutionary significance. In: Fossil Record, Band 18, 2015, S. 17–30, (pdf 9 Ekim 2020 tarihinde Wayback Machine sitesinde arşivlendi.).
