Wicander,R.

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
Duvernaysphaera	Duvernaysphaera angelae	North America	Early Givetian	Middle Givetian
Duvernaysphaera	Duvernaysphaera tenuicingulata	North America	Late Emsian	Frasnian
Eisenackidium	Eisenackidium appendiculum	North America	Early Givetian	Middle Givetian
Estiastra	Estiastra rhytidoa	North America	Early Givetian	Middle Givetian
Exochoderma	Exochoderma arca	North America	Early Givetian	Middle Givetian
Exochoderma	Exochoderma triangulata	North America	Early Givetian	Middle Givetian
Goniolopadion	Goniolopadion prolixum	North America	Early Givetian	Middle Givetian
Gorgonisphaeridium	Gorgonisphaeridium cumulatum	North America	Late Siegenian	Middle Givetian
Gorgonisphaeridium	Gorgonisphaeridium granatum	North America	Late Siegenian	Middle Givetian
Gorgonisphaeridium	Gorgonisphaeridium inflatum	North America	Early Givetian	Middle Givetian
Hapsidopalla	Hapsidopalla chela	North America	Early Givetian	Middle Givetian
Hapsidopalla	Hapsidopalla exornata	North America	Late Eifelian	Givetian
Hapsidopalla	Hapsidopalla invenusta	North America	Early Givetian	Middle Givetian
Leiofusa	Leiofusa pyrena	North America	Early Givetian	Middle Givetian
Lophosphaeridium	Lophosphaeridium dumale	North America	Late Emsian	Early Eifelian
Lophosphaeridium	Lophosphaeridium ochthos	North America	Early Givetian	Middle Givetian
Micrhystridium	Micrhystridium stellatum	North America	Late Siegenian	Middle Givetian