Azolla circinata

Citations total:
link From To Geolocation Author - title Year
original Maastrichtian Montana Hall,J.W. A new genus of Salviniaceae and a new species of Azolla from the Late Cretaceous. 1968
details Late Cretaceous Montana Hall,J.W. Studies on fossil Azolla 1969
details Maastrichtian Montana Oltz,D.F. Numerical analyses of palynological data from Cretaceous and Early Tertiary sediments in East Central Montana. 1969
details Late Cretaceous Montana Hall,F.W. Notes on fossil Salviniaceae. 1969
details Cretaceous Nd Jain,R.K. Pre-Tertiary records of Salviniaceae. 1971
details Late Cretaceous Paleocene Montana Oltz,D.F. Cluster analyses of Late Cretaceous-Early Tertiary pollen and spores 1971
details Montana Hall,J.W. Cretaceous Salviniaceae. 1974
details Maastrichtian North Dakota Bergad,R.D. Palynology of the Hell Creek Formation (Maastrichtian) in South-Central North Dakota. 1974
details Maastrichtian Montana Srivastava,S.K. Cretaceous spore-pollen floras 1978
details Nd Nd Srivastava,S.K. Cretaceous spore-pollen floras 1978
details Nd Nd Batten,D.J. et al. Catalog of Mesozoic and Tertiary megaspores 1990
details Late Maastrichtian North America Nichols,D.J. et al. Palynological evidence of effects of the terminal Cretaceous event on terrestrial floras in Western North America. (In: Extinction events in earth history. IGCP, Proceeding of Project 216. E.G.Kauffman and O.H.Walliser, editors) 1990
details Early Maestrichtian Nigeria Kumaran,K.P.N. et al. A reappraisal of Salviniaceous fossils and its implication on the age and depositional environment of Nkporo Shale of Calabar Flank, Nigeria 1994
details Cretaceous Nd Ramanujam,C.G.K. et al. Remain of Azollaceae from Late Albian of Cauvery Basin and their evolutionary significance. 1996