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Total: 26

species valid

Akchemia sibirica Petrosjan Trudy Vsesoyuzn. Nauchno-Issled. Geol. Inst., Nov. Ser., 1980, (204): 18. 24 Apr 1981

species valid

Aphyllopteris tenuis Petrosjan in Lepech., Petrosjan, Radcz. Trudy Vsesoyuzn. Nauchno-Issled. Geol. Inst., Nov. Ser., (70): 141. 5 May 1962

species valid

Barinophyton sibiricum Petrosjan in Lepech., Petrosjan, Radcz. Trudy Vsesoyuzn. Nauchno-Issled. Geol. Inst., Nov. Ser., (70): 130. 5 May 1962

species valid

Bjertdagia punctata Petrosjan Trudy Vsesoyuzn. Nauchno-Issled. Geol. Inst., Nov. Ser., 1980, (204): 20. 24 Apr 1981

species unavailable

Bjertdagia punctata Petrosjan in Nalivk. Trudy III Mezhd. Simp. Granitse Silura Devona, Leningrad 1968, 2: 215. 1973

species valid

Condomaephyton gracile Radcz., Petrosjan Inform. Sborn. Vsesoyuzn. Nauchno-Issl. Geol. Inst., (24): 102. 10 Jun 1960

species valid

Condrusia brevis Petrosjan in Lepech., Petrosjan, Radcz. Trudy Vsesoyuzn. Nauchno-Issled. Geol. Inst., Nov. Ser., (70): 139. 5 May 1962

species valid

Dichophyton typicum Petrosjan, Kovb. in Lepech., Petrosjan, Radcz. Trudy Vsesoyuzn. Nauchno-Issled. Geol. Inst., Nov. Ser., (70): 96. 5 May 1962

species unavailable

Eldychemia kirkinskayae (A. Ananiev) Petrosjan in Kossenko, Petrosjan, Shum. in Zanina Novye Vidy Drevn. Rast. Bespozv. SSSR, ([3]): 295. 3 Oct 1972

species unavailable

Eldychemia kirkinskayae (A. Ananiev) Petrosjan in Nalivk. Trudy III Mezhd. Simp. Granitse Silura Devona, Leningrad 1968, 2: 215. 1973

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