Late Ordovician benthic marine communities in north-central New York by Peter William Bretsky

Cover of: Late Ordovician benthic marine communities in north-central New York | Peter William Bretsky

Published by University of the State of New York, State Education Dept. in Albany .

Written in English

Read online


  • New York (State)


  • Invertebrates, Fossil -- New York (State),
  • Paleontology -- Ordovician.,
  • Paleontology -- New York (State)

Edition Notes

Bibliography: p. 31-32.

Book details

Statementby Peter Bretsky.
SeriesNew York State Museum and Science Service. Bulletin 414, Bulletin (New York State Museum and Science Service) ;, no. 414.
LC ClassificationsQE770 .B74
The Physical Object
Paginationv, 34 p.
Number of Pages34
ID Numbers
Open LibraryOL5029406M
LC Control Number73637074

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Ecological and statistical analyses of the Late Frasnian (Late Devonian) fauna of the Java Group of New York reveals the presence of three benthic marine : George Mcghee.

Ecological and statistical analyses of the Late Frasnian (Late Devonian) fauna of the Java Group of New York reveals the presence of three benthic marine communities. The Late Ordovician extinction of marine biotas resulted from an abrupt shrinkage of the shelf habitat caused by a lowering of the World Ocean, which, in turn, resulted from the fixation of great.

A thorough understanding of how communities respond to extreme changes, such as biotic invasions, is essential to manage ecosystems today.

Here we constructed fossil food webs to identify changes in Late Ordovician (Katian) shallow-marine paleocommunity structure and functioning before and after the Richmondian invasion, a well-documented ancient : Hannah L. Kempf, Ian O. Castro, Ashley A. Dineen, Carrie L. Tyler, Peter D.

Roopnarine. Ten benthic marine communities, including several new brachiopod associations, are defined on the basis of field data correlated with a cluster analysis. Biotic lnteractions in Recent. Data from a variety of paleoecological approaches presented here indicate that benthic level-bottom shallow marine communities were restructured during the Early Triassic ().Using the system of four paleoecological levels which Droser et al.

developed as a comparative approach to assess major ecological changes in Phanerozoic life, Bottjer et al. showed that the structural changes in Early. Three marine benthic communities are recognized in the Upper Ordovician clastic sequences of the central Appalachians.

These communities can be traced throughout part or all of Paleozoic time and, when compared with other previously designated Paleozoic communities, emphasize some evolutionary trends at the community level.

Late Ordovician (Ashgillian) carbonates belonging to the Port Nelson Formation transgress a resistant rocky shore near Churchill, Manitoba on the sout.

Peterson CH () Predation, competitive exclusion, and diversity in the soft-sediment benthic communities of estuaries and lagoons. In: Ecological processes in coastal and marine systems, ed Livingston RJ.

New York: Plenum, pp – Google Scholar. Bretsky, P. W., b, Late Ordovician benthic marine communities in north-central New York, N.Y. State Mus. Sci. Serv. Bull. 1– Mass Extinction Late Ordovician Marine Benthic Community Glaciation Event Iapetus Ocean These keywords were added by machine and not by the authors.

This process is experimental and the keywords may be updated as the learning algorithm improves. Marine shelf lagoon deposits of Middle Ordovician age in Tennessee contain the record of repeated ecological successions which began on soft, azoic, terrigenous muds and progressed to a complex bryozoan-brachiopod community.

The stages of succession formed a skeletal limestone bed. Benthic marine communities in the upper Ordovician clastics of the Tug Hill region, New York. In New York State Geological Association, 50th Annual Meeting Guidebook.

Edited by D.F. Merriam. Syracuse University, Syracuse, N.Y. – MacDonald, K. Late Ordovician benthic marine communities in north-central New York book,Quantitative community analysis: Recurrent group and cluster techniques applied to the fauna of the Upper Devonian Sonyea Group, New York.

Conceptual models of benthic marine communities. Community ecology of the Middle Ordovician Black River Group of New York State. Geol. Soc. (Late Ordovician), central‐western New South Wales. Journal of the Geological. Introduction. The Ordovician-Silurian (O S) transition is characterized by significant environmental changes and a major catastrophe for marine life, the Late Ordovician mass extinction (LOME).

It witnessed the waxing and waning of Hirnantian glaciation (Finnegan et al., ; Sutcliffe et al., ), glacio-eustatic rise and drop (Fan et al., ; Haq and Schutter, ), widespread. This expansion exploited vacant ecospace creating a range of new communities culminating, during the late Ordovician, with the well-established deep-water brachiopod Foliomena fauna (Harper et al., ) and trilobite cyclopygid fauna occupying Benthic.

Just before and during the Late Ordovician, a phase of major tectonic (mountain-building) activity, the Taconic Orogeny, resulted in severe crustal deformation and uplift along the region bordering New York and New England. Islands were raised high above sea level as lofty and jagged mountain chains resembling the modern Alps or Himalayas.

A series of new roadcuts south of Mount Washington, Kentucky, exposes the lower to middle Richmondian Stage (Upper Ordovician, Cin­cinnatian) and presents a diverse suite of marine.

Abstract. Mobile infauna are prominent members of modern benthic communities inhabiting granular substrata. In settings below normal wavebase, the benthic fauna is dominated by infaunal deposit-feeders (McCall, ; Rhoads et al., ), and the substratum is characterized by bioturbated sedimentary fabrics (Moore and Scruton, ; Rhoads, ).).

Habitats subjected to wave. As first shown by Bambach (), alpha diversity increased by 50 to 70 percent in offshore marine environments during the Ordovician and then remained essentially constant for the remainder of the Paleozoic. Biotic Interactions in Recent and Fossil Benthic Communities.

Plenum; New York. Seposki, J. Jr., Bambach, R. K Organic-buildup. Report on the marine fauna and benthic shelf-slope communities of the isthmian region. M-fiche BMI Late Ordovician benthic marine communities in North-Central New York.

Mus. Bull. N.Y. Mus. Sci. Serv Some points of geographical distribution and ecology of the Middle and Late Ordovician bryozoans in the West part of the Altai. Simplified (Fig. 2), the GOBE could thus be separated into three different phases comprising diversifications of the planktonic (late Cambrian–Early Ordovician), level‐bottom benthic (Early–Middle Ordovician) and reef communities (Middle–Late Ordovician), although the boundaries (beginning and end) of these phases are diachronous (as.

Climate change during Late Ordovician mass extinction drove an ecologically selective decline in the abundance of deep-water macrozooplankton, accompanied by a shift to simpler, less even communities.

These results indicate that the species abundance structure of planktic communities may be a leading indicator of the effects of climate change on biodiversity and a more sensitive gauge of. Bretsky, Peter,Late Ordovician benthic marine communities in north-central New York: New York State Museum and Science Service Bulletin34 p.

Brett, Carl,Geology of Kentucky's "AA" Highway. Alexandria to Maysville, KY. Geology of Southern Ohio and Northern Kentucky. Introduction.

Ostracods are small bivalved crustaceans with a fossil record extending back to the are a diverse class of aquatic crustaceans, have a well-preserved fossil record, and are known from more t living and extinct ods have adopted both benthic and pelagic lifestyles, but most ostracods in the fossil record are benthic: the weakly calcified.

The fundamental biodiversity number, θ, as proposed by Hubbell, should be positively correlated with province area. Because θ can be calculated from preserved relative abundance distributions, this correlation can be tested in the fossil record for regions with known provinces.

Late Ordovician (– Ma) strata of Laurentia are divided into four geochemically and biologically distinct.

Late Ordovician benthic marine communities in north-central New York. New York State Museum and Science Series Bulletin, – The Ordovician–Silurian extinction events, when combined, are the second-largest of the five major extinction events in Earth's history in terms of percentage of genera that became event greatly affected marine communities, which caused the disappearance of one third of all brachiopod and bryozoan families, as well as numerous groups of conodonts, trilobites, and graptolites.

For mid-Paleozoic marine invertebrates of x [sup.6] yr ago, benthic communities and regional faunas persist for x [sup.6] yr with rather limited species loss and introduction (% species persistence), with new species tending to be closely related to coexistent or earlier community members; abrupt and extensive turnovers.

The Darriwilian (late Middle Ordovician) Saucrorthis Fauna, a brachiopod-dominated shelly fauna in normal marine (relatively deeper) benthic regimes with muddy or calcareous muddy substrates, was a typical regional fauna confined mainly to the South China palaeoplate, together with some sporadic occurrences in the Sibumasu palaeoplate and a.

The Cambrian Burgess Shale-type biotas form a globally consistent ecosystem, usually dominated by arthropods. Elements of these communities continued into the Early Ordovician at high latitude, but our understanding of ecological changes during the Great Ordovician Biodiversification Event (GOBE) is currently limited by the paucity of Ordovician exceptionally preserved open-marine faunas.

The Cambrian Period (/ ˈ k æ m. b r i. ə n, ˈ k eɪ m-/ KAM-bree-ən, KAYM-) was the first geological period of the Paleozoic Era, and of the Phanerozoic Eon. The Cambrian lasted million years from the end of the preceding Ediacaran Period million years ago (mya) to the beginning of the Ordovician Period mya.

Its subdivisions, and its base, are somewhat in flux. The first jawed fish appeared late in the Ordovician. Mass marine life extinctions that occurred during in the late Ordovician ( ± million years ago) claimed some 60% of genera, thereby creating niches for benthic (bottom-dwelling) and planktonic (floating, swimming) organisms.

A carbonate ramp in the shallow‐marine northwestern part of the Central Tarim Uplift, Bachu, NW China, exhibits an extraordinary Late Ordovician reef complex along the Lianglitag Mountains, exposed for a distance of about 25 km.

Seven localities within the ‘Middle Red Limestone’ of the Upper Member of the Lianglitag Formation (Katian, Late Ordovician) illustrated the changes in biofacies. Fossils provide insights into the evolution of animal morphology and function, whereas compilations of biostratigraphic data (refs.

1 and 2 and similar compilations) allow us to explore the history of biological diversity. Surprisingly, given the rich interpretational possibilities, attempts to integrate function and diversity through time have been limited, especially in studies of whole. @article{osti_, title = {Response of infaunal organisms represented by trace fossils to sea-level changes in the Ordovician Black River and Trenton Group limestones, upstate New York}, author = {Tegan, J R and Curran, H A}, abstractNote = {Small-scale fluctuations in sea level were revealed by detailed analysis of trace fossil assemblages formed by infaunal organisms within the Lowville.

In late Ordovician rock ( mya) from England millipede-like trackways have been preserved (Palmer,p. 71). Mass Extinction. The marine ecosystems experienced extinction on a global scale towards the end of the Ordovician period.

The Ordovician extinction may be second only to the mass extinction that would end the Paleozoic Era. Introduction. Late Ordovician (~ Ma) shallow marine deposits of Laurentia record a series of dramatic faunal and biogeographic shifts including a rapid change from predominantly warm to cool water adapted taxa during the middle Mohawkian (late Sandbian) and a major regional biotic immigration event into the Cincinnati Basin during the early Richmondian (Katian) [1,2].

Assemblage paleoecology of a new Glyptocrinus from the Late Ordovician of northern Kentucky and southwestern Ohio. Journal of Paleontology, Journal of Paleontology, [note this paper is in the volume of the journal but was not published until ][doi: /jpa].Testing the role of biological interactions in the evolution of mid-Mesozoic marine benthic ecosystems.

Access Product Relative taxonomic and ecologic stability in Devonian marine faunas of New York state: A test of coordinated stasis. Glaciation in the Late Ordovician, Late Devonian, Pennsylvania-Permian and Cenozoic compared.Trilobita alpha diversity and the reorganization of Ordovician benthic marine communities Paleobiology.

late Taconian Orogeny, Late Ordovician Appalachian Basin, eastern USA Aseismic ridge subduction as a driver for the Ordovician Taconic orogeny and Utica foreland basin in New England and New York State Tectonics, Sedimentary Basins.

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