Vakhrameev,V.A.

Author:
Vakhrameev,V.A.;Barkhatnaya,I.N.;Dobrutskaya,N.A.;Pavlov,V.V.;Rovnina,L.V.;Fokina,N.I.

Year:
1975

Title:
Paleobotanical data and the Jurassic-Cretaceous boundary.

Reference:

Vakhrameev,V.A. et al. (1975) Paleobotanical data and the Jurassic-Cretaceous boundary. M©moires du Bureau des Recherches G©ologiques et MiniЁres (BRGM) Vol. 86 P. 213- 220

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Genus	Species	Country(Region)	From	To
Cicatricosisporites	Cicatricosisporites tricostatus	USSR(Taymyr Nat.Okrug)	Middle Volgian	Late Volgian
Classopollis	Classopollis	USSR(Kursk)	Volgian	Berriasian
Classopollis	Classopollis	USSR(Turkmen SSR)	Volgian	Berriasian
Classopollis	Classopollis	USSR(Kazakh SSR)	Volgian	Berriasian
Classopollis	Classopollis	USSR(Siberia)	Volgian	Berriasian
Classopollis	Classopollis	USSR(Ukrainian SSR)	Volgian	Berriasian
Clavifera	Clavifera	USSR(Turkmen SSR)	Tithonian	Early Cretaceous
Concavisporites	Concavisporites sp	USSR(Kazakh SSR)	Volgian
Concavissimisporites	Concavissimisporites gibberulum	USSR(Taymyr Nat.Okrug)	Middle Volgian	Late Volgian
Concavissimisporites	Concavissimisporites gibberulum	USSR(Taymyr Nat.Okrug)	Valanginian
Concavissimisporites	Concavissimisporites gibberulum	USSR(Ukrainian SSR)	Middle Volgian
Concavissimisporites	Concavissimisporites gibberulum	USSR(Ukrainian SSR)	Valanginian
Concavissimisporites	Concavissimisporites grossituberculatus	USSR(Ukrainian SSR)	Valanginian
Coniopteris	Coniopteris sp	USSR(Siberia)	Volgian
Coniopteris	Coniopteris sp	USSR(Taymyr Nat.Okrug)	Volgian
Cupressacites	Cupressacites minor	USSR(Kazakh SSR)	Volgian
Cyathidites	Cyathidites australis	USSR(Ukrainian SSR)	Berriasian