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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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Leonova & Shilovskii |
2007 |
Evolution of the Permian Family Spirolegoceratidae (Goniatitida, Ammonoidea).
Paleontologicheskii Zhurnal, 41 (1): 28-38, 3 fig.,pl.5.
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