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Authors |
Year |
Title |
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Boardman, Work & Mapes |
1994 |
Revision of the family Shumarditidae Plummer & Scott, 1937.
Kansas Geological Survey Bulletin, 232: 48-56, figs.23-26.
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Bogoslovskaya |
1986 |
Ammonoidei. In: Atlas kharakternykh kompleksov Permskoi fauny i flory Urala i Russkoi platformy.
Trudy, novaia seria, 331: 14-15, pl.37-59, (Nedra) Leningrad.
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Nassichuk, Furnish & Glenister |
1965 |
The Permian ammonoids from Arctic Canada.
Bulletin of the Geological Survey of Canada, 131: 1-56, fig.1-17, tab.1-7, pl.1-5; Ottawa.
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Ruzhencev |
1938 |
Ammonei Sakmarskogo yarusa i ikh stratigraficheskoe znachenie.
Problemy Paleontologii, 4: 187-285, fig.1-19, pl.1-7; Moskva.
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Ruzhencev |
1950 |
Verkhnekamennougol'nye ammonity Urala.
Trudy Paleont. Inst., Akad. Nauk SSSR, 29: 1-220, fig.1-84, pl.1-15; Moskva.
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Ruzhencev |
1951 |
Nizhnepermskie ammonity yuzhnogo Urala. 1.Ammonity Sakmarskogo Yarusa.
Trudy Paleontologicheskogo Instituta Akademiya Nauk SSSR, 33: 1-186, fig.1-62, phot.1-8, pl.1-15; Moskva.
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Saunders |
1971 |
The Somoholitidae: Mississippian to Permian ammonoids.
Journal of Paleontology, 45 (1): 100-118, fig.1-6, pl.23-24; Tulsa, Okla.
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