Author:
Good,C.W.;Taylor,T.N.
Year:
1975
Title:
The morphology and systematic position of Calamitean elater-bearing spores.
Reference:
Good,C.W. et al. (1975) The morphology and systematic position of Calamitean elater-bearing spores. Geoscience and Man Vol. 11 P. 133- 139
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Genus Species Country(Region) From To
Ricaspora Ricaspora Texas Pennsylvanian
Ricaspora Ricaspora India Permian
Vestispora Vestispora Worldwide Middle Chesterian Early Monongahela
Weissistachys Weissistachys Kentucky Early Pennsylvanian