66. Devonian Fossils from Heitai, Mishan-hsien, Manchoukuo; Second Note

Running head : Lower Devonian Nematothallus and Cosmochlaina anatomy Compression fossils from the Silurian and Devonian of southern Britain, composed of cuticles

Disparity Changes in 370 Ma Devonian Fossils: The Signature of Ecological Dynamics?

Early periods in Earth's history have seen a progressive increase in complexity of the ecosystems, but also dramatic crises decimating the biosphere. Such patterns are usually considered as large-scale changes among supra-specific groups, including morphological novelties, radiation, and extinctions. Nevertheless, in the same time, each species evolved by the way of micro-evolutionary processes...

Editor's note on 'Putting fossils in trees' special issue.

shallow marine trace fossils from upper devonian sediments of the kuh-e zard, zefreh area, central iran

upper devonian sediments of the kuh-e zard area northwest of zefreh, central iran, arecomposed mainly of brown and grey limestones with sandstone and shale intercalations. they contain tracefossils such as chondrites isp., diplocraterion parallelum, fustiglyphus annulatus, lockeia isp., phycodesisp., and taenidium barretti. these trace fossils indicate a shallow marine environment

A Second Edition Note

Papers in this series are not formal publications of the World Bank. They are circulated to encourage thought and discussion. The use and citation of this paper should take this into account. The views expressed are those of the authors and should not be attributed to the World Bank. Copies are available from the Environment Department, The World Bank, Room MC-5-126.