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Leonova, Kutygin & Shilovskii |
2005 |
New Data on the Composition and Evolution of the Permian Superfamily Popanocerataceae (Ammonoidea).
Paleontologicheskii Zhurnal, 39 (5): 20-29,5 fig.,1 pl. [Paleontological Journal, 39 (5): 476-486,5 fig.,1 pl.]
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Leonova |
2006 |
Roudskie ammonoidei v severnykh raionakh zemnogo shara.
[Roadian Ammonoids in the northern regions of the earth].
In: Evolyutsiya Biosfery i Bioraznoobraziya, 5: Problemy stratigrafii i paleobiogeografii, KMK: 540-551, 3 fig.
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