Kaschirzew, A. S. (1959). A new brachiopod genus Jakutoproductus from the Lower Permian deposits of the Eastern Siberia, in:. Mater. k “Osnovam paleontologii”. Vyp. 3 [Materials to “Fundamentals of Paleontology,” Vol. 3]. Akad. Nauk SSSR, Moscow, pp. 28–31.
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Kaschirzew, A. S.
1959
A new brachiopod genus Jakutoproductus from the Lower Permian deposits of the Eastern Siberia, in:
Mater. k “Osnovam paleontologii”. Vyp. 3 [Materials to “Fundamentals of Paleontology,” Vol. 3]