Ordovician

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ShellyThis is a very pretty bit of Ordovician aged limestone found in western Ohio. The fossil assem

Link #geology #limestone #fossil #fossils #crinoid #gastropod #cincinnati #ordovician #the earth story

Ancient Horseshoe CrabAlthough fossils like this are much smaller than their modern day descendants,

Link #fossil #geology #horseshoe crab #video #evolution #ordovician #the earth story

fossilera:41" Fossil Brittlestar, Trilobite & Crinoid PlateThis is a spectacular, 41"

Link #fossil #trilobite #brittle star #crinoid #ordovician #geology #morocco #fossilfriday #the earth story

The End Ordovician Mass ExtinctionThis plot shows “extinction intensity”, defined as the fraction of

Link #science #research #extinction #ordovician #geology #the earth story #geochemistry #chemistry

Ancient earthquakesThese layered rocks are Ordovician aged sediments deposited in Kentucky, about 45

Link #geology #seismite #sedimentary #seismic #research #sedimentation #kentucky #ordovician #the earth story #hardground

paleotopresent:Paraceraurus exsul, 460 million years.

Link #paraceraurus exsul #trilobite #sketch #geology #limestone #shell #artists on tumblr #the earth story #ordovician #trilobite tuesday #trilobitetuesday

n7-paleontologist:thought-cafe: Remembering the slow yet captivating crawl of evolution. ~ @thecrash

Link #geology #paleontology #geologic timeline #geologic time #phanerozoic #cenozoic #mesozoic #evolution #permian #triassic #ordovician #devonian #silurian #cambrian #ediacaran #cliffs #video #the earth story

n7-paleontologist:thought-cafe: Remembering the slow yet captivating crawl of evolution. ~ @thecrash

Link #geology #paleontology #geologic timeline #geologic time #phanerozoic #cenozoic #mesozoic #evolution #permian #triassic #ordovician #devonian #silurian #cambrian #ediacaran #cliffs #video #the earth story

n7-paleontologist:thought-cafe: Remembering the slow yet captivating crawl of evolution. ~ @thecrash

Link #geology #paleontology #geologic timeline #geologic time #phanerozoic #cenozoic #mesozoic #evolution #permian #triassic #ordovician #devonian #silurian #cambrian #ediacaran #cliffs #video #the earth story

n7-paleontologist:thought-cafe: Remembering the slow yet captivating crawl of evolution. ~ @thecrash

Link #geology #paleontology #geologic timeline #geologic time #phanerozoic #cenozoic #mesozoic #evolution #permian #triassic #ordovician #devonian #silurian #cambrian #ediacaran #cliffs #video #the earth story

n7-paleontologist:thought-cafe: Remembering the slow yet captivating crawl of evolution. ~ @thecrash

Link #geology #paleontology #geologic timeline #geologic time #phanerozoic #cenozoic #mesozoic #evolution #permian #triassic #ordovician #devonian #silurian #cambrian #ediacaran #cliffs #video #the earth story

n7-paleontologist:thought-cafe: Remembering the slow yet captivating crawl of evolution. ~ @thecrash

Link #geology #paleontology #geologic timeline #geologic time #phanerozoic #cenozoic #mesozoic #evolution #permian #triassic #ordovician #devonian #silurian #cambrian #ediacaran #cliffs #video #the earth story

n7-paleontologist:thought-cafe: Remembering the slow yet captivating crawl of evolution. ~ @thecrash

Link #geology #paleontology #geologic timeline #geologic time #phanerozoic #cenozoic #mesozoic #evolution #permian #triassic #ordovician #devonian #silurian #cambrian #ediacaran #cliffs #video #the earth story

n7-paleontologist:thought-cafe: Remembering the slow yet captivating crawl of evolution. ~ @thecrash

Link #geology #paleontology #geologic timeline #geologic time #phanerozoic #cenozoic #mesozoic #evolution #permian #triassic #ordovician #devonian #silurian #cambrian #ediacaran #cliffs #video #the earth story

bijoux-et-mineraux:Asteroidea and Brittle Starfish Fossils on matrix (Ordovician, 488 - 433 million

Link #fossil #starfish #ordovician #fossilfriday #geology #asteroidea #morocco #limestone #the earth story

Ordovician fossils and textbook species evolutionThis rock is a piece of fossil-rich limestone from

Link #geology #limestone #nature #landscape #cincinnati basin #research #ordovician #the earth story

amnhnyc:It’s time for #TrilobiteTuesday! Ladyburn, Scotland has long been recognized as one of Europ

Link #fossil #trilobite #scotland #geology #limestone #ladyburn #nature #landscape #trilobitetuesday #ordovician #the earth story

What Do You See?Is it a bird? An Elephant? No, it is actually granite. This boulder is part of the R

Link #australia #granite #geology #flinders chase #national park #ordovician #erosion #beach #nature #landscape #imagination #the earth story