Three hundred new samples of marine evaporite sulfate, of world-wide distribution, were
analyzed for δ 34 S, and 60 of these also for δ 18 O in the sulfate ion. Detailed δ 34 S age …

A simple equilibrial model for the growth and maintenance of Phanerozoic global marine
taxonomic diversity can be constructed from considerations of the behavior of origination …

The kinetic model of taxonomic diversity predicts that the long-term diversification of taxa
within any large and essentially closed ecological system should approximate a logistic …

Calcareous nannofossils are becoming increasingly important in Mesozoic biostratigraphy
due to their great abundance and ease of preparation. Paleoenvironmental restriction and …

Species diversity among fossil invertebrates of the Phanerozoic is highly correlated with
volume and area of sedimentary rocks. The correlations are statistically significant at the 1 …

Benthic ecologists have successfully applied rarefaction techniques to the problem of
compensating for the effect of sample size on apparent species diversity (= species …

The history of life is replete with apparent order. Much of this order may reflect the
deterministic causes conventionally invoked, but we cannot be sure until we measure and …

The western part of Asturias is characterised by a thick sequence (more than 10.000 m) of
Lower Palaeozoic sediments, which suffered polyphase deformation and low grade regional …

Late Precambrian (∼ 750±200 Ma) glaciogenic sequences exhibit substantial evidence for
marked climatic inequability of seasonal and longer periodicity (10° to∼ 106 yrs):(1) tillites …

The level of achievable stratigraphic resolution determines the nature of the many
ecological, evolutionary, and geological questions for which a reasonable answer may be …