Author:
Wicander,R.
Year:
1984
Title:
Middle Devonian acritarch biostratigraphy of North America
Reference:
Wicander,R. (1984) Middle Devonian acritarch biostratigraphy of North America Journal of Micropalaeontology Vol. 3 # 2 P. 19- 24
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Genus Species Country(Region) From To
Arkonites Arkonites bilixus North America Early Givetian Middle Givetian
Baltisphaeridium Baltisphaeridium anfractum North America Late Siegenian Early Eifelian
Baltisphaeridium Baltisphaeridium distentum North America Late Siegenian Middle Givetian
Baltisphaeridium Baltisphaeridium microfurcatum North America Late Siegenian Givetian
Cymatiosphaera Cymatiosphaera acrochorda North America Early Givetian Middle Givetian
Cymatiosphaera Cymatiosphaera canadensis North America Late Siegenian Givetian
Cymatiosphaera Cymatiosphaera cornifera North America Late Siegenian Givetian
Cymatiosphaera Cymatiosphaera multisepta North America Emsian Middle Givetian
Cymatiosphaera Cymatiosphaera peifferi North America Early Givetian Middle Frasnian
Cymatiosphaera Cymatiosphaera perimembrana North America Early Givetian Middle Frasnian
Cymatiosphaera Cymatiosphaera winderi North America Emsian Middle Givetian
Dictyotidium Dictyotidium cohorum North America Early Givetian Middle Givetian
Dictyotidium Dictyotidium dictyotum North America Early Givetian Middle Givetian
Dictyotidium Dictyotidium variatum North America Late Siegenian Givetian
Diexallophasis Diexallophasis remota North America Late Siegenian Givetian
Diexallophasis Diexallophasis simplex North America Early Givetian Middle Givetian
Divietipellis Divietipellis ventricosa North America Late Siegenian Givetian