A New Genus of the Cheiruridae with Descriptions of Some New Species
Author : Donald O. Barton
Publisher :
Page : pages
File Size : 31,69 MB
Release : 1915
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Author : Donald O. Barton
Publisher :
Page : pages
File Size : 31,69 MB
Release : 1915
Category :
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Author : Donald Clinton Barton
Publisher :
Page : 20 pages
File Size : 30,48 MB
Release : 1913
Category : Paleontology
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Author : Donald C.. Barton
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Page : 10 pages
File Size : 38,26 MB
Release : 1913
Category :
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Author :
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Page : 1324 pages
File Size : 22,99 MB
Release : 1914
Category : Catalogs, Union
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Author : Harvard University. Museum of Comparative Zoology
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Page : 670 pages
File Size : 40,48 MB
Release : 1902
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Author : Byron Nelson Cooper
Publisher : Geological Society of America
Page : 98 pages
File Size : 28,67 MB
Release : 1953
Category : Paleontology
ISBN : 0813710553
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.
Author :
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Page : 1324 pages
File Size : 25,83 MB
Release : 1915
Category : Animals
ISBN :
"Zoological Record is published annually in separate sections. The first of these is Comprehensive Zoology, followed by sections recording a year's literature relating to a Phylum or Class of the Animal Kingdom. The final section contains the new genera and subgenera indexed in the volume." Each section of a volume lists the sections of that volume.
Author :
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Page : 1004 pages
File Size : 39,24 MB
Release : 1914
Category : Geology
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Author :
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Page : 1252 pages
File Size : 27,19 MB
Release : 1912
Category : Zoology
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Author : Arthur K. Miller
Publisher : Geological Society of America
Page : 305 pages
File Size : 15,2 MB
Release : 1954
Category : Cephalopoda, Fossil
ISBN : 0813710626