This time interval is called the Paleocene - Eocene Thermal Maximum (PETM).    From Wordnik.com.  [WN.com - Articles related to Global warming - It's already happening] Reference

The middle horizon is called Paleocene and is 2500 meters below the bottom of the sea.    From Wordnik.com.  [Recently Uploaded Slideshows] Reference

Presumably, Rohrabacher was referencing a period known as the Paleocene-Eocene Thermal Maximum.    From Wordnik.com.  [Think Progress] Reference

I think that article about Paleocene dinosaurs is out of date.    From Wordnik.com.  [Steve Steve and the Fossil-Fossils of De-Na-Zin - The Panda's Thumb] Reference

The Paleocene-Eocene warming killed 90 percent of marine life.    From Wordnik.com.  [Dale Pendell: Hot Air] Reference

CO2 concentrations during the Paleocene, Eocene and Oligocene eras.    From Wordnik.com.  [The Volokh Conspiracy » “Walking to the Shops ‘Damages Planet More Than Going By Car’”:] Reference

Look particularly at the period between the Jurassic and the Paleocene.    From Wordnik.com.  [The Volokh Conspiracy » Case against flying not so airtight] Reference

It is underlain by Miocene, Oligocene, Eocene, and Paleocene sediments.    From Wordnik.com.  [Ecoregions of Texas (EPA)] Reference

Environment and evolution through the Paleocene – Eocene thermal maximum.    From Wordnik.com.  [Dangerous Climate Change] Reference

(According to this map of Paleocene climate, Greenland also had palm trees.).    From Wordnik.com.  [Scott Dodd: Can a Giant Prehistoric Snake Teach Us About Climate Change?] Reference

And check out the Paleocene-Eocene Thermal Maximum, when it happened, what happened and why.    From Wordnik.com.  [On Thursday, the Legg report will be published along with...] Reference

The fossil record of North American mammals: evidence for a Paleocene evolutionary radiation.    From Wordnik.com.  [Mammalian Macroevolution Muddle - The Panda's Thumb] Reference

The lava flow capping the feature is early Paleocene, so yes, it is above the “k-p line”.    From Wordnik.com.  [Castle Rock - South Table Mountain - The Panda's Thumb] Reference

New earliest Tiffanian (late Paleocene) mammals from Cochrane 2, southwestern Alberta, Canada.    From Wordnik.com.  [Archive 2006-05-01] Reference

I read a paper on the discovery of Paleocene-aged pantodont footprints in a coal mine in Norway.    From Wordnik.com.  ["This is the lowest we will ever get. It never gets darker."] Reference

The Paleocene-Eocene Thermal Maximum is generally believed to have been caused by methane release.    From Wordnik.com.  [Matthew Yglesias » Arctic Seabed Methane Stores Destabilizing] Reference

Tagged with ecology, ocean acidification, mass extinction events, Paleocene-Eocene Thermal Maximum.    From Wordnik.com.  [Apocalypse Monday « Gerry Canavan] Reference

It is underlain by mostly Eocene and Paleocene-age formations with some Cretaceous rocks to the north.    From Wordnik.com.  [Ecoregions of Texas (EPA)] Reference

The arctic had crododiles 55 million years ago, at the time of the Paleocene Eocene Thermal Maximum (PETM).    From Wordnik.com.  [Think Progress » Attacking Global Warming Science: Where There’s George Will, There’s a Way] Reference

New Mexico paleontologist Spencer Lucas has written about the Paleocene dinosaurs in the Ojo Alamo sandstone.    From Wordnik.com.  [Steve Steve and the Fossil-Fossils of De-Na-Zin - The Panda's Thumb] Reference

This study is aimed at unraveling paleoceanographic changes associated with the late Paleocene thermal maximum.    From Wordnik.com.  [Bürger and Cubasch: Are multiproxy climate reconstructions robust? « Climate Audit] Reference

In the interval just above the claylayer in the Chicxulub core 794.11-793.85m true Paleocene foraminifera are found.    From Wordnik.com.  [Should Keller's Thin Sections Be Independently Tested? « Climate Audit] Reference

These two periods, later designated Oligocene and Paleocene, were inserted into the Tertiary in their proper places.    From Wordnik.com.  [Cenozoic] Reference

In Louisiana, Tertiary deposits are mostly Eocene clays, silts, and sands, with some Paleocene sediments to the west.    From Wordnik.com.  [Ecoregions of Louisiana (EPA)] Reference

I have no idea how you get that impression when the full name of the PETM is the “Paleocene-Eocene Thermal Maximum”.    From Wordnik.com.  [Unthreaded « Climate Audit] Reference

The earliest fossil lagomorphs, such as Eurymylus, come from eastern Asia, and date to the late Paleocene or early Eocene.    From Wordnik.com.  [Video: Kitteh Team-Up - Lolcats 'n' Funny Pictures of Cats - I Can Has Cheezburger?] Reference

He proposed that a belch of methane escaped from ice in seafloor sediments as the Earth warmed during the latest Paleocene.    From Wordnik.com.  [Bürger and Cubasch: Are multiproxy climate reconstructions robust? « Climate Audit] Reference

The most recent of these mass extinctions defines the boundary, 55 million years ago, between the Paleocene and Eocene epochs.    From Wordnik.com.  [The Threat to the Planet] Reference

In East Texas, Tertiary deposits are mostly Eocene sediments, with minor amounts of Paleocene and Cretaceous sediments in the north.    From Wordnik.com.  [Ecoregions of Texas (EPA)] Reference

A relative sea-level fall ~30 m immediately preceded the late Paleocene thermal maximum, during which sea-level rose again by ~20 m.    From Wordnik.com.  [Bürger and Cubasch: Are multiproxy climate reconstructions robust? « Climate Audit] Reference

Specifically, the sandstone comes from the Paleocene period “oldest dawn of the recent period”, and is over 60 million years old.    From Wordnik.com.  [Steve Steve and the Fossil-Fossils of De-Na-Zin - The Panda's Thumb] Reference

Sediment core spanning the Paleocene-Eocene green - house warming event 55 million years ago.    From Wordnik.com.  [PhysOrg.com - latest science and technology news stories] Reference

As reported in January 2010, McMoRan logged 200 net feet of pay in multiple Eocene/Paleocene (Wilcox) sands in the well.    From Wordnik.com.  [News] Reference

It's where the Paleocene meets the Eocene, and it is a thermal maximum, so we call it the Paleocene-Eocene Thermal Maximum.    From Wordnik.com.  [Energy Bulletin -] Reference

Zachos, J. C., and Dickens, G.R. Carbon dioxide forcing alone insufficient to explain Paleocene-Eocene Thermal Maximum warming.    From Wordnik.com.  [EurekAlert! - Breaking News] Reference