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References
- 1 2 Shimansky, V.N. (1951). "On the question of the evolution of the Upper Paleozoic straight cephalopods". Doklady Akademii Nauk SSSR. 79 (5): 867–870.
- ↑ Meek, F.B. (1871). "Descriptions of new species of fossils from Ohio and other western states and territories". Proceedings of the Academy of Natural Sciences of Philadelphia. 23: 159–184.
- ↑ Gemmellaro, G.G. (1889). "La fauna de' calcari con Fusulina della valle del fiume Sosio nella provincia di Palermo". Giornale di Scienze Naturali ed Economiche. 20: 37–138.
- ↑ Shimansky, V.N. (1954). "Straight nautiloids and bactritoids of the Sakmarian and Artinskian stages of the South Urals". Trudy Paleontologicheskogo Instituta Akademii Nauk SSSR. 44: 1–156.
- ↑ Shimansky, V.N. (1968). "Carboniferous Orthoceratida, Oncoceratida, Actinoceratida and Bactritida". Trudy Paleontologicheskogo Instituta Akademii Nauk SSSR. 117: 1–151.
- ↑ Mapes, R.H. (1979). "Carboniferous and Permian Bactritoidea (Cephalopoda) in North America". The University of Kansas Paleontological Contributions. 64: 1–75.
- ↑ Shimansky, V.N. (1993). "Permian bactritoids of the Pamir". Paleontological Journal. 27 (3): 153–160.
- ↑ Miller, A.K.; Unklesbay, A.G. (1947). "The cephalopod fauna of the Conemaugh series in western Pennsylvania: supplement". Annals of the Carnegie Museum. 30: 319–330. doi: 10.5962/p.330904 .
- ↑ Shchedukhin, A.Y. (2022). "The first find of Bactritoidea (Cephalopoda) in the Asselian–Sakmarian beds of the Shakhtau Reef (Bashkortostan)". Paleontological Journal. 56 (5): 496–502. Bibcode:2022PalJ...56..496S. doi:10.1134/S0031030122050112.
- ↑ Mutvei, H. (2017). "The new order Mixosiphonata (Cephalopoda: Nautiloidea) and related taxa; estimations of habitat depth based on shell structure". GFF. 139 (3): 219–232. Bibcode:2017GFF...139..219M. doi:10.1080/11035897.2017.1330278.