Uppermost Ordovician (upper Katian-Hirnantian) graptolites of north-central Nevada, U.S.A

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985831%3A_____%2F11%3A00361335" target="_blank" >RIV/67985831:_____/11:00361335 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.3140/bull.geosci.1264" target="_blank" >http://dx.doi.org/10.3140/bull.geosci.1264</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3140/bull.geosci.1264" target="_blank" >10.3140/bull.geosci.1264</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Uppermost Ordovician (upper Katian-Hirnantian) graptolites of north-central Nevada, U.S.A

Popis výsledku v původním jazyce

Rich graptolite fauna described from Katian and Hirnantian of central Nevada suggests that graptolite diversity decreased abruptly at the beginning of Hirnantian glaciation. Faunal turnover reached a peak in the lower part of the extraordinarius Biozone.Ordovician clades were rapidly replaced by normalograptids, presumably evolved in, and invading from, less-temperate higher latitude settings where overall graptolite diversity was extremely low already in pre-glacial times and the old fauna entirely vanished with ongoing glaciation. In tropics, however, elements of the old fauna locally survived and emerged from hypothetical refugia in the upper part of the extraordinarius Zone and, second times, in the persculptus Biozone. The last phase of mass extinction of the long-dominant Ordovician clades took place during postglacial transgression, along with major radiation among normalogratids. Reasons for ultimate extinction of the former fauna may be biological rather than environmental.

Název v anglickém jazyce

Uppermost Ordovician (upper Katian-Hirnantian) graptolites of north-central Nevada, U.S.A

Popis výsledku anglicky

Rich graptolite fauna described from Katian and Hirnantian of central Nevada suggests that graptolite diversity decreased abruptly at the beginning of Hirnantian glaciation. Faunal turnover reached a peak in the lower part of the extraordinarius Biozone.Ordovician clades were rapidly replaced by normalograptids, presumably evolved in, and invading from, less-temperate higher latitude settings where overall graptolite diversity was extremely low already in pre-glacial times and the old fauna entirely vanished with ongoing glaciation. In tropics, however, elements of the old fauna locally survived and emerged from hypothetical refugia in the upper part of the extraordinarius Zone and, second times, in the persculptus Biozone. The last phase of mass extinction of the long-dominant Ordovician clades took place during postglacial transgression, along with major radiation among normalogratids. Reasons for ultimate extinction of the former fauna may be biological rather than environmental.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

DB - Geologie a mineralogie

OECD FORD obor

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Projekt

<a href="/cs/project/IAA301110908" target="_blank" >IAA301110908: Faunistická dynamika klimaxového stádia společenstev svrchního ordoviku před globální krizí způsobenou klimatickými změnami: záznam z králodvorského souvrství Barrandienu</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2011

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Bulletin of Geosciences

ISSN

1214-1119

e-ISSN

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Svazek periodika

86

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

86

Strana od-do

301-386

Kód UT WoS článku

000291926200009

EID výsledku v databázi Scopus

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