acritarch


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acritarch

(ˈækrɪˌtɑːk)
n
a type of small fossil
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References in periodicals archive ?
Low biotic diversity and pauperate acritarch assemblage in deposits of the Soru Formation reflect once again an unstable environment at the inital phase of the Liivian sedimentation.
The acritarch record of Australia indicates that pre- and post-Snowball populations are identical and do not indicate repopulation of marine areas by extremophiles that survived both catastrophic glaciation in hot springs and the brutal greenhouse conditions which followed (Grey et al., 2003).
A mineralized alga and acritarch dominated microbiota from the Tully Formation (Givetian) of Pennsylvania, USA.
The Lumsden Dam Formation contains the graptolite Rhabdinopora flabelliformis flabelliformis and an acritarch assemblage of Tremadocian age (White et al.
The conodont faunas from this area have been studied intensively and David Gelsthorpe (University of Leicester, UK) is currently engaged in a detailed study of acritarch diversity changes through the Ireviken Event in NW Gotland.
present the discovery of the messaoudensis-trifidum acritarch assemblage in the upper Tremadocian-lower Floian, Lower Ordovician of
The outcrops also contain undescribed pre-Agnostus pisiformis acritarch assemblages that confirm the timing of their deposition to the Cambrian Epoch 3 (Palacios et al.
Early Tremadoc acritarch microfossils were reported by Doyle (1979) and confirmed by Palacios et al.
The messaoudensis-trifidum acritarch assemblage is known from upper Tremadocian to lower Floian (Lower Ordovician) strata in many localities on the Gondwanan margin (Servais et al.