English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

4 | December 2008 ABSTRACT The habitat in which early fish originated and diversified has long been controversial, with arguments spanning everything from marine to fresh-water. A recent sequence stratigraphic analysis of the Ordovician Harding Formation of central Colorado demonstrates that the primitive fish first described by Charles Walcott did indeed live in a shallow marine environment, as he argued.This study underscores the need for analyses of the depositional environment and sequence architecture of fossiliferous deposits to guide paleobiological and biostratigraphic inferences.

 The Habitat of Primitive Vertebrates: The Need for Sedimentary Geology in Paleontology