1. Alifirov, A.S. and Knyazev, V.G., The Upper Callovian ammonites Cardioceratidae from Northern Siberia, Stratigr. Geol. Correl., 2020, vol. 28, no. 5, pp. 493–513.
2. Alifirov, A.S. and Meledina, S.V., Callovian ammonites of Western Siberia: Chronology and chorology, News Paleontol. Stratigr. Suppl.
to
Russ. Geol. Geophys., 2010, vol. 51, no. 14, pp. 61–84.
3. Alifirov, A.S., Knyazev, V.G., and Meledina, S.V., To the systematics and phylogeny of the Late Bathonian–Middle Callovian Cardioceratidae (Ammonoidea), in Mater. LXIII sess. paleont. obshch. pri RAN “Integrativnaya paleontologiya: perspektivy razvitiya dlya geologicheskikh tselei” (3–7 aprelya 2017 g., Sankt-Peterburg) (Proc. LXIII Sess. Paleont. Soc. Russ. Acad. Sci. “Integrative Paleontology: Development Prospects for Geological Purposes” (April 3–7, 2017, St. Petersburg)), St. Petersburg, 2017, pp. 12–15.
4. Callomon, J.H. and Wright, J.K., Cardioceratid and kosmoceratid ammonites from the Callovian of Yorkshire, Palaeontology, 1989, vol. 32, Pt. 4, pp. 799–836.
5. Imlay, R.W., Callovian (Jurassic) ammonites from the United States and Alaska. Pt. 2. Alaska Peninsula and Cook Inlet regions, U.S. Geol. Surv. Prof. Pap., 1953, no. 249-B, pp. 41–108.