Calymenid and Other Ordovician Trilobites from Kentucky and Ohio

Calymenid and Other Ordovician Trilobites from Kentucky and Ohio PDF Author: Reuben James Ross
Publisher:
ISBN:
Category : Paleontology
Languages : en
Pages : 40

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Book Description
Additional title page description: Species of the trilobites Iostelus, Bathyurus?, Proetidella, Gravicalymene, Flexicalymene, and Acidaspis are described from Middle and Upper Ordovician strata of Kentucky.

Calymenid and Other Ordovician Trilobites from Kentucky and Ohio

Calymenid and Other Ordovician Trilobites from Kentucky and Ohio PDF Author: Reuben James Ross
Publisher:
ISBN:
Category : Paleontology
Languages : en
Pages : 40

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Book Description
Additional title page description: Species of the trilobites Iostelus, Bathyurus?, Proetidella, Gravicalymene, Flexicalymene, and Acidaspis are described from Middle and Upper Ordovician strata of Kentucky.

Silicified Middle Ordovician Trilobites

Silicified Middle Ordovician Trilobites PDF Author: Harry Blackmore Whittington
Publisher: Geological Society of America
ISBN: 0813710596
Category : Paleontology
Languages : en
Pages : 183

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Silicified Middle Ordovician Trilobites: The Odontopleuridae

Silicified Middle Ordovician Trilobites: The Odontopleuridae PDF Author: Harry Blackmore Whittington
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Trilobites from the Lower Champlainian Formations of the Appalachian Valley

Trilobites from the Lower Champlainian Formations of the Appalachian Valley PDF Author: Byron Nelson Cooper
Publisher: Geological Society of America
ISBN: 0813710553
Category : Paleontology
Languages : en
Pages : 98

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Book Description
Forty-five species of lower Middle Ordovician trilobites, including six new genera and thirty new species, are described and illustrated from the extensive collections in the United States National Museum. Most of these species occur in beds whose age and correlation have been a matter of controversy for more than a decade. The stratigraphic evidence afforded by the trilobites lends strong support to regional stratigraphic interpretations of the lower Champlainian beds in the Appalachian Valley, which have been worked out by G. Arthur Cooper and the writer fromdetailed study of brachiopod faunas and from physical stratigraphic studies. The trilobites, like brachiopods, are not so restricted in their facies distribution as are many groups of invertebrate fossils. Hence they are very useful in establishing contemporaneity of dissimilar facies. In this paper only the more common trilobites are described. The principal purpose of this study is to make available for biostratigraphic use a number of trilobite species, most of which have been confused or misidentified previously.

Trilobites of New York

Trilobites of New York PDF Author: Thomas Edward Whiteley
Publisher: Comstock Publishing Associates
ISBN:
Category : Nature
Languages : en
Pages : 410

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Book Description
"Trilobites are the most lifelike of fossils--many well-preserved specimens belie their great antiquity and seem almost ready to arch their bodies, peer about with their compound eyes, and crawl forward as if to complete a journey that was interrupted hundreds of millions of years ago."--from the Foreword"New York State is and has long been a magnet for trilobite hunters.... New York's trilobites were among the first illustrated fossils in North America.... Many outstanding localities in New York State, from the majestic Ordovician limestone bluffs of Trenton Falls, to the Silurian beds in the great gorge of Niagara River, to the Devonian shale cliffs of Lake Erie, continue to yield abundant and spectacular trilobite fossils. New York strata have also yielded more trilobites with preserved appendages and other "soft parts" than almost any other region of the world.... Spectacular, ornate trilobites from New York ranging from a few millimeters to nearly a half meter in length, are featured in museums all over the world."--from the PrefaceThis superbly illustrated book reviews the trilobite fossils found throughout New York State, including their biology, methods of taphonomy (preservation of specimens), and the broader Paleozoic geology of the state. A general chapter on the geology of New York State places the importance of these now-extinct invertebrate marine animals into context. Sixty-seven line drawings and 175 black-and-white photographs illustrate individual species, many represented here by type specimens, and display the eerie beauty that has made New York State trilobites favorites of collectors the world over.

The Lower Ordovician (Upper Floian) Bathyurid Trilobite Aponileus Hu, with Species from Utah, Texas and Greenland

The Lower Ordovician (Upper Floian) Bathyurid Trilobite Aponileus Hu, with Species from Utah, Texas and Greenland PDF Author: Jonathan M. Adrain
Publisher:
ISBN: 9781869778842
Category : Paleontology
Languages : en
Pages : 65

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Biostratigraphic Zoning and Trilobites of the Upper Cambrian and Lower Ordovician of the Northwestern Siberian Platform

Biostratigraphic Zoning and Trilobites of the Upper Cambrian and Lower Ordovician of the Northwestern Siberian Platform PDF Author: Antonina Viktorovna Rozova
Publisher:
ISBN:
Category : Paleontology
Languages : en
Pages : 243

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Book Description