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The Ordovician in California, US

Ordovician in California map

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Geologic map of CA from California Geological Survey (625 KB PDF)

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Ordovician Fossils
Fossil photos from Ordovician in California

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Paleontology and geology

Along the northwestern edge of the ancient continent of Laurentia (which is now the western edge of North America), a broad carbonate platform continued to develop. Warm waters of this shallow limy sea were home to a great diversity of animals including graptolites, trilobites, brachiopods, colonial corals, bryozoans, and stromatoporoids (sponge-like animals with calcareous skeletons). Although not shown on this map, Ordovician sandstones, shales, conglomerates, cherts, dolostones, and some altered sedimentary rocks in California are found mainly in the White Mountains, Inyo Mountains, and in places around Death Valley.

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Courses and Lectures (showing 1 of 1 listings)

Paleogeography of the Southwestern U.S.: The paleogeography of the southwestern U.S. from 1.8 billion years ago to 10 million years ago. Text and images by Dr. Ron Blakey from Northern Arizona University.

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Image Collections (showing 1 of 1 listings)

Some Fossil Brachiopods: Images of several fossil brachiopods, dating in geologic age from early Cambrian to Pleistocene, with explanatory text.

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General Reference (showing 1 of 1 listings)

Fossils In Death Valley National Park: The paleontology, geology and natural wonders of Death Valley National Park (and more); many images of fossils; field trips; paleontology links, plus links to Death Valley.

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