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The Schrammen Collection of Cretaceous Silicispongiae in the American Museum of Natural History

The Schrammen Collection of Cretaceous Silicispongiae in the American Museum of Natural History PDF Author: Marjorie O'Connell
Publisher:
ISBN:
Category : Paleontology
Languages : en
Pages : 278

Book Description


The Schrammen Collection of Cretaceous Silicispongiae in the American Museum of Natural History

The Schrammen Collection of Cretaceous Silicispongiae in the American Museum of Natural History PDF Author: Marjorie O'Connell
Publisher:
ISBN:
Category : Paleontology
Languages : en
Pages : 278

Book Description


Bulletin

Bulletin PDF Author:
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 1304

Book Description


Wheldon & Wesley's Catalogue

Wheldon & Wesley's Catalogue PDF Author: Wheldon & Wesley, Ltd
Publisher:
ISBN:
Category :
Languages : en
Pages : 316

Book Description


Fossil and Recent Sponges

Fossil and Recent Sponges PDF Author: Joachim Reitner
Publisher: Springer Science & Business Media
ISBN: 3642756565
Category : Science
Languages : en
Pages : 606

Book Description
Fossil and Recent Sponges contains articles on taxonomic, phylogenetic and ecological aspects of sponges of both biological and paleontological interest. They focus on three main topics: phylogeny and systematics, biology, and paleoecology of sponges. The reader is offered an overview over the most important aspects of current sponge research: - establishment of a new taxonomy based on mono phyletic groups (phylogenetic systematics) including recent and fossil taxa - new concepts of the biomineralisation of sponge skeletons - palaeoenvironmental analysis of fossil sponge buildups.

Bulletin of the United States Geological Survey

Bulletin of the United States Geological Survey PDF Author: Geological Survey (U.S.)
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 1020

Book Description


Bibliography of North American Geology

Bibliography of North American Geology PDF Author:
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 1018

Book Description
1919/28 cumulation includes material previously issued in the 1919/20-1935/36 issues and also material not published separately for 1927/28. 1929/39 cumulation includes material previously issued in the 1929/30-1935/36 issues and also material for 1937-39 not published separately.

Shallow-water sponges of the western Bahamas

Shallow-water sponges of the western Bahamas PDF Author: F. Wiedenmayer
Publisher: Birkhäuser
ISBN: 3034857977
Category : Science
Languages : en
Pages : 329

Book Description
During the period the sponges described herein were which were used only sporadically in the past and were collected (1963-7), the author was a Research Associate regarded as of marginal value until two decades ago, at the Department of Geology, University of Illinois, paleontology and embryology, are now receiving great participating in a research project on carbonate attention. They have already brought drastic revisions to sediments of the Bimini area, directed by Prof. William systematics, with regard to redefinition and classification W. Hay (Department of Geology, University of Illinois. of higher taxa. Other approaches have recently emerged utilizing biochemistry, histology, cytology, autecology, now at the Rosenstiel School of Marine and Atmospheric and zoogeography, and these promise significant ad Science, University of Miami) and supported by the National Science Foundation. The objective of this pro vance in the delimitation and classification oflower taxa. ject was a study of the relationship between the carbo The rapidly changing state of sponge taxonomy is reflect nate sediments of the Bimini area and the benthonic ed in the paucity of definitive (i. e. widely accepted) revisions of genera and families. The lack of stability and fauna and flora, especially with regard to skeletal ele ments contributed to the sediment.

Collected papers

Collected papers PDF Author: Alfred Sherwood Romer
Publisher:
ISBN:
Category :
Languages : en
Pages : 808

Book Description


The American Journal of Science

The American Journal of Science PDF Author:
Publisher:
ISBN:
Category : Earth sciences
Languages : en
Pages : 524

Book Description


The National Union Catalog, Pre-1956 Imprints

The National Union Catalog, Pre-1956 Imprints PDF Author:
Publisher:
ISBN:
Category : Union catalogs
Languages : en
Pages : 712

Book Description