Author:
Ravn,R.L.;Witzke,B.J.
Year:
1994
Title:
The Mid-Cretacous boundary in the western interior seaway, central United States: Implications of palynostratigraphy from the type Dakota Formation. (In: Perspectives on the eastern Margin of the Cretaceous Western Interior Basin. G.W. Shurr et al, editors)
Reference:
Ravn,R.L. et al. (1994) The Mid-Cretacous boundary in the western interior seaway, central United States: Implications of palynostratigraphy from the type Dakota Formation. (In: Perspectives on the eastern Margin of the Cretaceous Western Interior Basin. G.W. Shurr et al, editors) Geological Society of America, Special Paper # 287 P. 111- 128
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Genus Species Country(Region) From To
Liliacidites Liliacidites sp.D Doyl.& Robb.,1977 sp. nov. Iowa Middle Albian Early Cenomanian
Liliacidites Liliacidites sp.E Doyl.& Robb.,1977 sp. nov. Iowa Middle Albian Early Cenomanian
Microfoveolatosporis Microfoveolatosporis pseudoreticulatus Iowa Early Cenomanian
Microreticulatisporites Microreticulatisporites sacali Iowa Late Albian Early Cenomanian
Monosulcites Monosulcites spinosus Iowa Late Albian Early Cenomanian
Montiapollis Montiapollis hallii Iowa Cenomanian
Neoraistrickia Neoraistrickia robusta Iowa Late Albian Middle Cenomanian
Odontochitina Odontochitina costata Iowa Middle Cenomanian
Oligosphaeridium Oligosphaeridium sp Iowa Middle Cenomanian
Petalosporites Petalosporites quadrangulus Iowa Middle Cenomanian
Plicatella Plicatella fucosa Iowa Early Cenomanian
Plicatella Plicatella jansonii Iowa Late Albian Middle Cenomanian
Plicatella Plicatella unica Iowa Late Albian Early Cenomanian
Polypodiisporites Polypodiisporites cenomanianus Iowa Early Cenomanian
Retimonocolpites Retimonocolpites peroreticulatus Iowa Late Albian Early Cenomanian
Rousea Rousea wilsonii Iowa Early Cenomanian
Sabalpollenites Sabalpollenites scabrus Iowa Late Albian Early Cenomanian