Global ETD Search
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Showing 1 to 4 of 4 for “"acanthomorphic"”.
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Constraining the Ediacaran-Cambrian boundary in South China using acanthomorphic acritarchs and Palaeopascichnus fossils
… biostratigraphic criteria. Investigations of acanthomorphic acritarchs in basal Cambrian strata of South China suggest that these microfossils may provide an appropriate biostratigraphic marker for the Ediacaran-Cambrian boundary, because of their wide distribution in chert-phosphorite layers …
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Exceptional Preservation and Bias in the Fossil Record
… of the Doushantuo Formation in South China. Acanthomorphic acritarchs represent a promising tool for subdivision and correlation of the Doushantuo Formation of South China and Ediacaran strata around the world. However, the occurrence of acanthomorphic acritarchs within the Doushantuo …
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Integrated High-resolution Stratigraphy of the Doushantuo Formation, South China
… appearance of large spiny acritarchs called the acanthomorphic acritarch, followed by the radiation of the Ediacara biota (575-542 Ma), and earliest recognizable bilaterally symmetrical animals (~550 Ma). It has been proposed that key environmental events, such as the termination of the …
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Contributions to the Proterozoic and Cambrian Evolution of Eukaryotes
… Formation in the Aksu area revealed abundant acanthomorphic acritarchs, clustered coccoidal microfossils, filamentous cyanobacteria, and tubular microfossils. This study confirms previous stratigraphic correlation between the Yanjiahe and Yurtus formations and suggests that animals and …