A small patch of Ordovician strata lies on the northern side of.    From Wordnik.com.  [Encyclopaedia Britannica, 11th Edition, Volume 2, Part 1, Slice 1] Reference

The end-Ordovician (ca. 450 million years before present (MYBP)).    From Wordnik.com.  [Who Do You Say I Am] Reference

Most of the surface, however, is underlain by Ordovician carbonates.    From Wordnik.com.  [Ecoregions of Iowa and Missouri (EPA)] Reference

By the end of the Ordovician, life was no longer confined to the seas.    From Wordnik.com.  [Paleozoic] Reference

Dating as far back as the Ordovician or early Silurian, around 450 Ma.    From Wordnik.com.  [Continental Drift] Reference

CO2 in the Ordovician is thought to have been about 3000 – 4000 ppmv.    From Wordnik.com.  [A few inconvenient truths « Climate Audit] Reference

The Ordovician flora and fauna ignored them, having gotten to know them.    From Wordnik.com.  [Robot Adept]

Ordovician and Cambrian limestone and dolomite commonly underlie Ecoregion 67f.    From Wordnik.com.  [Ecoregions of Delaware, Maryland, Pennsylvania, Virginia, and West Virginia (EPA)] Reference

I almost fell out of my seat when he said they found an Ordovician Anomalocaris.    From Wordnik.com.  [Common ancestry passes another test. News at 11. - The Panda's Thumb] Reference

The series is now placed at the top of the Ordovician System, above the Llandeilo beds.    From Wordnik.com.  [Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 2 "Baconthorpe" to "Bankruptcy"] Reference

Other Ordovician and Cambrian formations occur and contain limestone, dolomite, and shale.    From Wordnik.com.  [Ecoregions of Delaware, Maryland, Pennsylvania, Virginia, and West Virginia (EPA)] Reference

Silurian, Ordovician, and Cambrian limestone and dolomite commonly underlie Ecoregion 67a.    From Wordnik.com.  [Ecoregions of Delaware, Maryland, Pennsylvania, Virginia, and West Virginia (EPA)] Reference

It seems the creationists chose to build on some beautifully fossil-rich Ordovician layers.    From Wordnik.com.  [The Panda's Thumb: July 2007 Archives] Reference

Conodonts were primitive planktonic vertebrates that appear at the start of the Ordovician.    From Wordnik.com.  [Table of geologic time - The Panda's Thumb] Reference

At the end of the Ordovician Period 440 million years ago it would have been even less bright.    From Wordnik.com.  [Making Apple Pie Instead of Cherry Pie « Climate Audit] Reference

The truth is that in the Late Ordovician Period the greenhouse hadn't even been invented yet. steve.    From Wordnik.com.  [On Thursday, the Legg report will be published along with...] Reference

Unfortunately he says, referring to the Ordovician: “Some of the very earliest life forms on Earth.”.    From Wordnik.com.  [Now this is how to critique Ken Ham's creation “museum” - The Panda's Thumb] Reference

Ecoregion 52 is underlain by Ordovician - and Silurian-age dolomite, limestone, and shale (Kolata, 2005).    From Wordnik.com.  [Ecoregions of Illinois (EPA)] Reference

The region encompasses most all of the outer areas of the generally non-cherty Ordovician limestone bedrock.    From Wordnik.com.  [Ecoregions of Tennessee (EPA)] Reference

The sea floor of the Baltic is also of sandstone, overlain by younger rocks, including Ordovician limestones.    From Wordnik.com.  [Kvarken Archipelago High Coast, Finland and Sweden] Reference

The late Ordovician had an ice age despite CO2 levels of 4,000 ppm, which is over ten times the current level.    From Wordnik.com.  [Hansen and Schmidt: Predicting the Past? « Climate Audit] Reference

My topic was an Upper Ordovician benthonic community - yep you got it - basically it was another of my seascapes.    From Wordnik.com.  [Snell-Pym » Palaeo-Art] Reference

Ecoregion 71d is underlain by Ordovician limestone and shale which distinguishes it from other nearby ecoregions.    From Wordnik.com.  [Ecoregions of Indiana and Ohio (EPA)] Reference

The area shares the same bedrock, Mississippian to the north, and Ordovician to the south, as nearby Ozark regions.    From Wordnik.com.  [Ecoregions of Iowa and Missouri (EPA)] Reference

The region encompasses most of the area containing the Ordovician non-cherty limestone and calcareous shale bedrock.    From Wordnik.com.  [Ecoregions of Alabama and Georgia (EPA)] Reference

These events occurred in the Late Ordovician, Late Devonian, Permian, Triassic and an occurrence called the K/T event.    From Wordnik.com.  [Edenic Period] Reference

Stockport Flats is part of the Hudson-Mohawk Lowlands physiographic region, made up of Cambrian and Ordovician bedrock.    From Wordnik.com.  [Hudson River National Estuarine Research Reserve, New York] Reference

So the Ordovician CO2 is somewhere between 3-4 doublings above concentrations that in present conditions allow glaciation.    From Wordnik.com.  [A few inconvenient truths « Climate Audit] Reference

Although all of these except the archaeocyathids survived past the Cambrian, their diversity declined after the Ordovician.    From Wordnik.com.  [Paleozoic] Reference

The Silurian period follows the Ordovician, and the Miocene epoch follows the Oligocene as surely as Wednesday follows Tuesday.    From Wordnik.com.  [Centennial]

We have no way of determining how the organisms of the Ordovician were suited to the prevailing marine chemistry of that period.    From Wordnik.com.  [Hansen and Schmidt: Predicting the Past? « Climate Audit] Reference

Ecoregion 71 is underlain by Mississippian-age through Ordovician-age limestone, calcareous shale, sandstone, siltstone, and shale.    From Wordnik.com.  [Ecoregions of Kentucky (EPA)] Reference

The boundary of Ecoregion 64d generally follows the limit of Ordovician-Cambrian carbonate rocks and the karst, agricultural lowland.    From Wordnik.com.  [Ecoregions of Delaware, Maryland, Pennsylvania, Virginia, and West Virginia (EPA)] Reference

Harley Davidson proclaims that in the Late Ordovician Period: According to greenhouse theory, Earth should have been exceedingly hot.    From Wordnik.com.  [On Thursday, the Legg report will be published along with...] Reference

Ordovician slates and grits with Llandovery beds in places; this tract spreads out in the N. of the island between Dulas Bay and Carmel.    From Wordnik.com.  [Encyclopaedia Britannica, 11th Edition, Volume 2, Part 1, Slice 1] Reference

That means the rocks are quite a bit older than the Cambrian and Ordovician slate and phyllite at Beavertail, two miles to the southwest.    From Wordnik.com.  [Of Books and the Sea] Reference

It is composed largely of limestone, and slopes gently seaward in a series of steps, defined by faulting in the underlying Ordovician rock.    From Wordnik.com.  [Gros Morne National Park, Canada] Reference

Over the next six hours, they viewed the Permian-Triassic extinction, the Late Devonian extinction, and the Ordovician-Silurian extinction.    From Wordnik.com.  [365 tomorrows » 2008 » March : A New Free Flash Fiction SciFi Story Every Day] Reference