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Author:
Ravn,R.L.
Year:
1986
Title:
Palynostratigraphy of the Lower and Middle Pennsylvanian Coals of Iowa
Reference:
Ravn,R.L. (1986) Palynostratigraphy of the Lower and Middle Pennsylvanian Coals of Iowa Iowa Geological Survey,Technical Paper # 7 P. 1- 244
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Genus Species Country(Region) From To
Acanthotriletes Acanthotriletes microspinosus Nd Nd
Acanthotriletes Acanthotriletes novicus USSR(Ukrainian SSR) Middle Carboniferous
Acanthotriletes Acanthotriletes ovalis Sweden Liassic
Acanthotriletes Acanthotriletes productus Nd Nd
Acanthotriletes Acanthotriletes socraticus Scotland(E.Lothian) Dinantian
Acanthotriletes Acanthotriletes spinosus Iowa Morrowan Desmoinesian
Acanthotriletes Acanthotriletes splendidus England(Derbyshire) Namurian A
Acanthotriletes Acanthotriletes superbus Australia(Queensland) Middle Permian
Acanthotriletes Acanthotriletes tereteangulatus Australia Permian
Acanthotriletes Acanthotriletes triquetrus Iowa Middle Pennsylvanian
Acanthotriletes Acanthotriletes triquetrus England(Staffordshire) Westphalian C
Acanthotriletes Acanthotriletes uncinatus Nd Nd
Acanthotriletes Acanthotriletes varius Sweden Rhaetian Liassic
Adelisporites Adelisporites multiplicatus Iowa Morrowan Desmoinesian
Ahrensisporites Ahrensisporites exertus Iowa Middle Pennsylvanian
Ahrensisporites Ahrensisporites guerickei Iowa Middle Pennsylvanian
Ahrensisporites Ahrensisporites guerickei Iowa Morrowan Atokan