Ravn,R.L.

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 acritarchus	Scotland(Borders)	Visean
Acanthotriletes	Acanthotriletes aculeolatus	Iowa	Middle Pennsylvanian
Acanthotriletes	Acanthotriletes asperatus	Iowa	Morrowan	Desmoinesian
Acanthotriletes	Acanthotriletes baculatus	England(Derbyshire)	Namurian A
Acanthotriletes	Acanthotriletes bellus	Congo	Early Permian
Acanthotriletes	Acanthotriletes bradiensis	Australia(Tasmania)	Triassic
Acanthotriletes	Acanthotriletes castanea	Scotland(Fife)	Namurian A
Acanthotriletes	Acanthotriletes dimorphus	Iowa	Middle Pennsylvanian
Acanthotriletes	Acanthotriletes dimorphus	Pennsylvania	Allegheny
Acanthotriletes	Acanthotriletes echinatus	Iowa	Middle Pennsylvanian
Acanthotriletes	Acanthotriletes echinatus	Iowa	Morrowan	Desmoinesian
Acanthotriletes	Acanthotriletes echinatus	Illinois	Chesterian
Acanthotriletes	Acanthotriletes echinatus	Nd	Nd
Acanthotriletes	Acanthotriletes falcatus	Iowa	Atokan
Acanthotriletes	Acanthotriletes golenvauxii	Congo	Late Artinskian
Acanthotriletes	Acanthotriletes granulatus	Iowa	Morrowan	Desmoinesian
Acanthotriletes	Acanthotriletes hastatus	Scotland	Late Visean