Revision of the Ordovician acritarch genus Ampullula Righi 1991

The new chronostratigraphic classification of the Ordovician System and its relations to major regional series and stages and to δ ¹³ C chemostratigraphy

Stig M. Bergström, Xu Chen, J. C. Gutiérrez-Marco et al. · Lethaia · 2008 · 599 citations

Natural Sciences, Earth Sciences, Geology +14

A DISCUSSION AND PROPOSALS CONCERNING FOSSIL DINOFLAGELLATES, HYSTRICHOSPHERES, AND ACRITARCHS, I

William R. Evitt · Proceedings of the National Academy of Sciences · 1963 · 398 citations

Natural Sciences, Earth Sciences, Paleontology +16

The great Ordovician biodiversification event

Paul Smith · Earth-Science Reviews · 2004 · 201 citations

Natural Sciences, Biology, Paleontology +13

Biostratigraphy, taxonomic diversity and patterns of morphological evolution of Ordovician acritarchs (organic-walled microphytoplankton) from the northern Gondwana margin in relation to palaeoclimatic and palaeogeographic changes

Marco Vecoli · Earth-Science Reviews · 2004 · 135 citations

Natural Sciences, Evolutionary Biology, Paleontology +15

A proposed GSSP for the base of the Middle Ordovician Series: the Huanghuachang section, Yichang, China

Xiaofeng Wang, Svend Stouge, Bernd‐D. Erdtmann et al. · Episodes · 2005 · 81 citations · Full text

Natural Sciences, Earth Sciences, Geology +2