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Downiesphaeridium
General
Description
Stratigraphy
Literature
Notes
Species
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Name
Original Description
aciculare
Davey, R.J. (1969a)
armatum
Deflandre, G. (1937b)
bergmannii
Archangelsky, S. (1969a)
bulbum
Yu Jingxian (1989)
flexuosum
Davey, R.J., Downie, C., Sarjeant, W.A.S. and Williams, G.L. (1966)
iaculigerum
Klement, K.W. (1960)
multispinosum
Singh, Ch. (1964)
polyacanthum
Gitmez, G.U. (1970)
polytrichum
()
sarmentum
Stancliffe, R.P.W. (1991)
spinulastrum
Islam, M.A. (1983b)
tribuliferum
Sarjeant, W.A.S. (1962a)
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