Author:
Hill,P.J.
Year:
1974
Title:
Stratigraphic palynology of acritarchs from the type area of the Llandovery and the Welsh Borderland.
Reference:
Hill,P.J. (1974) Stratigraphic palynology of acritarchs from the type area of the Llandovery and the Welsh Borderland. Review of Palaeobotany and Palynology Vol. 18 # 1 P. 11- 23
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Genus Species Country(Region) From To
Eupoikilofusa Eupoikilofusa spinata Canada(Quebec) Middle Ordovician
Poikilofusa Poikilofusa spinata Canada(Quebec) Middle Ordovician
Diexallophasis Diexallophasis granulatispinosa England(Shropshire) Wenlockian
Multiplicisphaeridium Multiplicisphaeridium granulatispinosum England(Shropshire) Wenlockian
Ammonidium Ammonidium cladum England(Shropshire) Wenlockian
Baltisphaeridium Baltisphaeridium cladum England(Shropshire) Wenlockian
Domasia Domasia elongata Nd Nd
Domasia Domasia symmetrica Nd Nd
Domasia Domasia algerensis Ohio Middle Tarannon Late Tarannon
Leiofusa Leiofusa algerensis Ohio Middle Tarannon Late Tarannon
Baltisphaeridium Baltisphaeridium encantador Ohio Late Tarannon
Ammonidium Ammonidium encantador Ohio Late Tarannon
Visbysphaera Visbysphaera nannina Sweden Llandoverian
Baltisphaeridium Baltisphaeridium nanninum Sweden Llandoverian
Ammonidium Ammonidium cladum Wales(Carmarthenshire) Wenlockian
Ammonidium Ammonidium microcladum Wales(Carmarthenshire) Llandoverian Early Wenlockian
Ammonidium Ammonidium encantador Wales(Carmarthenshire) Fronian Wenlockian