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Showing 1 to 20 of 113 for “"Paleoecology."”.
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Paleoecology of the Chattanooga-Kinderhook Shale
Made available in DSpace on 2014-12-04T19:13:20Z (GMT). No. of bitstreams: 1 0005228.pdf: 6787202 bytes, checksum: 11998882ac7ec13ff14fb9991b076392 (MD5) Previous issue date: 1953
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Paleoecology of some upper Pennsylvanian benthic invertebrates
Digitized by Kansas Correctional Industries
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The paleoecology of the Keyser limestone: a re-evaluation
Makurath (1977), in studying the Keyser Limestone, concluded that brachiopods were distributed randomly, casting doubt over the validity of using recurrent communities as a paleoenvironmental tool. However, a re-evaluation of the Keyser fauna, utilizing cluster analysis, polar ordination, and …
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Paleoecology of Upper Harkless archaeocythan reefs in Esmeralda County, Nevada
Four previously unstudied reef localities occur in the upper Lower Cambrian (Bonnia-Olenellus Zone) in the Upper Harkless Formation in Esmeralda County, Nevada. These patch reefs were constructed on a shallow, carbonate platform in the subtidal zone by a consortium of archaeocyaths and …
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Paleolimnology and paleoecology of the Coal Valley region, Lincoln County, Nevada
During Pleistocene time, Coal Valley, Nevada, was situated between a pluvial climatic zone to the north and a non-pluvial climactic zone to the south. The Coal Lake section represents {dollar}>{dollar}20,000 years of continuous deposition, recording a saline lake phase (Early Coal Lake) present …
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Postglacial ostracod distribution and paleoecology, Devils Lake basin, northeastern North Dakota
<p>Sediment cores were taken from Main Bay and Creel Bay of Devils Lake (in 1975 and 1976) and East Devils Lake (in 1978), within the Devils Lake basin, and from Red Willow Lake (in 1979), a control lake outside of the Devils Lake basin, northeastern North Dakota. The cores were sampled, for the …
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Foraminiferal biostratigraphy and paleoecology of the Aquia Formation near Hanover, Virginia
Foraminifera of the Paleocene Aquia Formation outcropping near Hanover, Virginia were studied in terms of their taxonomy, stratigraphic distribution and abundance. A total of seventy-nine species were described, eight of which have never been reported in the Aquia. Twenty species of planktonic …
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Paleoclimate and paleoecology of Miocene Eastern African primate habitats : a multiproxy approach.
Reconstructing Miocene climate and ecosystem in eastern Africa is essential for understanding the environmental and geological contexts in which early primates evolved. Particularly, correlations between leaf size, shape, temperature, and precipitation have become a widely used tool for …
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Conodont biostratigraphy and paleoecology of the Lower Devonian Helderberg Group of Virginia
The occurrences of species of Delotaxis and Icriodus and the Ozarkodina remscheidensis eosteinhornensis--Ozarkodina remscheidensis remscheidensis lineage indicate that (1) most of the Keyser Formation of western Virginia is assignable to the uppermost Silurian eosteinhornensis zone; (2) the top of …
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Paleoecology of late quaternary Molluscan-Ostracod assemblages from the Norwood site, southeastern Minnesota
<p>Well-preserved fossils, including mollusks, ostracods, beetles and plant remains were extracted from sediments at the Norwood Site in southeastern Minnesota during July, 1977. Stratigraphic units, in ascending order, were: (1) sandy claystone, (2) clayey siltstone, (3) sandy siltstone, and (4) …
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Bivalvia and paleoecology of the Fox Hills Formation (Upper Cretaceous) of North Dakota
<p> The bivalve fauna of the Fox Hills Formation, Maestrichtian, of North Dakota was studied in an attempt to modernize the nomenclature of known bivalves, describe new forms, interpret the relationships of members of the formation, and establish the paleoecological setting in which the Fox Hills …
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Miocene herpetofaunas from the central Gulf Coast USA: their paleoecology, biogeography, and biostratigraphy
The late Barstovian Fort Polk herpetofauna represents the most diverse herpetofauna on the Gulf Coast, USA, and includes 15 genera from ten families. The herpetofaunal composition of Fort Polk and Miocene east Texas localities is similar enough to Great Plains localities that they are all …
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Paleoecology and Taphonomy of Ediacaran macrofossils from the Khatyspyt Formation, Olenek Uplift, Siberia
… approaches and methods for studying the paleoecology and taphonomy of Ediacaran macrofossils. The second chapter presents the results of a geochemical analysis to resolve taphonomic and paleoecological questions about the Ediacara-like discoidal holdfast fossil Aspidella. Stable isotope …
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Ecology and paleoecology of marine invertebrate communities in calcareous substrates, Northeast Quintana Roo, Mexico
A survey of benthic communities in the vicinity of Isla Cancun and Isla Contoy, Territory of Quintana Roo, Mexico, demonstrates that invertebrate death assemblages (i.e., future fossil assemblages) in this region reflect the in-place accumulation of remains of living benthic communities through …
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Paleoecology of a late quaternary biota at the McClusky Canal Site, central North Dakota
<p>Abundant and well-preserved Late Quaternary fossils were exposed at the McClusky Canal Site in the Missouri Coteau district of central North Dakota during the late summer and fall of 1976. Strati graphic units, in ascending order, are: (l) pebbly, clayey sand; (2) unlaminated, organic claystone; …
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Documentation of Missouri white-tailed deer chronoclines : implications for archaeology, paleoecology, and conservation biology
Multiple ecological factors (e.g., Bergmann's rule, competition, food quality and quantity) can be responsible for changes in animal body size over time. White-tailed deer (Odocoileus virginianus) serve as an ideal candidate for studying these variables due to their importance today (to hunters and …
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Organic-walled microplankton paleoecology and biostratigraphy of the Upper Cretaceous Ripley Formation, southwestern Georgia
This study documents the occurrence of dinoflagellate, chlorophyte, and acritarch cysts from the Upper Cretaceous upper Cusseta, Ripley, and lower Providence Formations in the USGS Fort Gaines core, drilled in Clay County, Georgia. A total of 75 taxa were identified, consisting of 36 genera, 61 …
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Paleontology and Paleoecology of the Nada Member of the Borden Formation (Lower Mississippian) in Eastern Kentucky
The Nada Member of the Borden Formation (Mississippian) in northeastern Kentucky was the delta platform deposit of the Borden delta. It consists mainly of iliciclastic mudstones with carbonates and siltstone interbeds. The dominant fossil groups that it contains are crinoids, brachiopods, rugose …
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