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Phanerozoic Trends in the Global Diversity of Marine Invertebrates
It has previously been thought that there was a steep Cretaceous and Cenozoic radiation of marine invertebrates. This pattern can be replicated with a new data set of fossil occurrences representing… Expand
Paleoecology of the oldest known animal communities: Ediacaran assemblages at Mistaken Point, Newfoundland
Abstract Ediacaran fossils at Mistaken Point, southeastern Newfoundland (terminal Neoproterozoic; 565–575 Ma) represent the oldest known animal communities. In contrast to most Phanerozoic fossil… Expand
End-Permian Mass Extinction in the Oceans: An Ancient Analog for the Twenty-First Century?
The greatest loss of biodiversity in the history of animal life occurred at the end of the Permian Period (∼252 million years ago). This biotic catastrophe coincided with an interval of widespread… Expand
A new ecological-severity ranking of major Phanerozoic biodiversity crises
A new ecological-severity ranking of the major Phanerozoic biodiversity crises is proposed in which the Capitanian crisis is ranked lesser than the Frasnian (Late Devonian) but greater than the… Expand
Paleoenvironmental analysis of the late Neoproterozoic Mistaken Point and Trepassey formations, southeastern Newfoundland
The Mistaken Point and Trepassey formations (Conception and St. John's groups, respectively) comprise a terminal Neoproterozoic, deep-marine succession of fine-grained turbidites and volcanogenic… Expand
The double mass extinction revisited: reassessing the severity, selectivity, and causes of the end-Guadalupian biotic crisis (Late Permian)
Abstract The end-Guadalupian extinction, at the end of the Middle Permian, is thought to have been one of the largest biotic crises in the Phanerozoic. Previous estimates suggest that the crisis… Expand
Acidification, anoxia, and extinction: A multiple logistic regression analysis of extinction selectivity during the Middle and Late Permian
Patterns of taxonomic and ecologic selectivity are the most direct record of processes infl uencing survival during background and mass extinctions. The Guadalupian (Capitanian) and end-Permian… Expand
Ediacaran epifaunal tiering
Epifaunal tiering, the subdivision of vertical space within a community, is a fundamental attribute of Phanerozoic suspension-feeding communities. This paper documents tiering, including the presence… Expand
Understanding mechanisms for the end-Permian mass extinction and the protracted Early Triassic aftermath and recovery
Modern study of the end-Permian mass extinction in the marine realm has involved intensive documentation of the fossil content, sedimentology, and chemostratigraphy of individual stratigraphic… Expand
Global patterns of insect diversification: towards a reconciliation of fossil and molecular evidence?
Macroevolutionary studies of insects at diverse taxonomic scales often reveal dynamic evolutionary patterns, with multiple inferred diversification rate shifts. Responses to major past environmental… Expand