Now, evidence suggests that some of these spiral-shaped species did manage to persist after all. Recent analysis of ammonite ...
We here describe the first partial cranium of Hyaenodon leptorhynchus, the type species of the taxonomically diverse and widely distributed hypercarnivorous genus Hyaenodon (Hyaenodonta). The cranium ...
Rain gauges did not exist millions of years ago. Instead, researchers turn to indirect clues left behind in rocks, soils, and ...
A new study has warned that unless we mitigate current levels of carbon dioxide emissions, Western Europe and New Zealand could revert to the hot tropical climate of the early Paleogene period -- ...
To understand how global warming could influence future climate, scientists look to the Paleogene Period that began 66 million years ago, covering a time when Earth's atmospheric carbon dioxide levels ...
American Journal of Botany, Vol. 69, No. 2 (Feb., 1982), pp. 275-286 (12 pages) The Juglandaceae (walnut family) has an excellent fossil record of various organs extending back to the earliest ...
The Paleogene Santa Rosa local fauna: introduction / Kenneth E. Campbell, Jr. -- The Paleogene Santa Rosa local fauna of Amazonian Peru / Kenneth E. Campbell, Jr., Carl David Frailey, Lidia ...
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