Response of organophosphatic brachiopods to the mid-Ludfordian (late Silurian) carbon isotope excursion and associated extinction events in the Prague Basin (Czech Republic)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F18%3A00000281" target="_blank" >RIV/00025798:_____/18:00000281 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60460709:41330/18:77010

Výsledek na webu

<a href="http://www.geology.cz/bulletin/contents/art1710" target="_blank" >http://www.geology.cz/bulletin/contents/art1710</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3140/bull.geosci.1710" target="_blank" >10.3140/bull.geosci.1710</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Response of organophosphatic brachiopods to the mid-Ludfordian (late Silurian) carbon isotope excursion and associated extinction events in the Prague Basin (Czech Republic)

Popis výsledku v původním jazyce

The present paper represents the first results of an on-going multidisciplinary study focused on the response of marine faunas to the mid-Ludfordian (late Silurian) carbon isotope excursion and associated extinction events (Ludfordian, late Silurian). The paper describes the stratigraphical distribution of organophosphatic brachiopods from the uppermost part of the Neocucullograptus inexpectatus to lower part of Monograptus parultimus graptolite biozones (i.e. early Ludfordian to earliest Přídolí). Numerical analysis of the stratigraphical distribution, based on more than 1300 determinable valves of 15 organophosphatic brachiopod species, revealed three groups being significantly supported. They are here formalized as new organophosphatic brachiopod communities: the oldest Opsiconidion ephemerus Community, the Kosoidea fissurella Community, and the youngest Opsiconidion parephemerus-Kosagittella clara Community. The Opsiconidion ephemerus Community and the Opsiconidion parephemerus-Kosagittella clara Community have distinct similarities in their taxonomic composition, moderate species diversity and low dominance indices. The communities are separated by the monospecific Kosoidea fissurella Community present just after the Lau and Kozlowskii bioevents during the period of high d13C values which is interpreted as an opportunistic community. Re-occurrence of some brachiopod taxa after the bioevents and the mid-Ludfordian carbon isotope excursion raises the question, at least for organophosphatic brachiopods, as to the extent to which the Lau and Kozlowskii bioevents represent true global extinction events and whether their significance has not been overestimated. Two new species are erected: Opsiconidion bouceki and Opsiconidion parephemerus.

Název v anglickém jazyce

Response of organophosphatic brachiopods to the mid-Ludfordian (late Silurian) carbon isotope excursion and associated extinction events in the Prague Basin (Czech Republic)

Popis výsledku anglicky

The present paper represents the first results of an on-going multidisciplinary study focused on the response of marine faunas to the mid-Ludfordian (late Silurian) carbon isotope excursion and associated extinction events (Ludfordian, late Silurian). The paper describes the stratigraphical distribution of organophosphatic brachiopods from the uppermost part of the Neocucullograptus inexpectatus to lower part of Monograptus parultimus graptolite biozones (i.e. early Ludfordian to earliest Přídolí). Numerical analysis of the stratigraphical distribution, based on more than 1300 determinable valves of 15 organophosphatic brachiopod species, revealed three groups being significantly supported. They are here formalized as new organophosphatic brachiopod communities: the oldest Opsiconidion ephemerus Community, the Kosoidea fissurella Community, and the youngest Opsiconidion parephemerus-Kosagittella clara Community. The Opsiconidion ephemerus Community and the Opsiconidion parephemerus-Kosagittella clara Community have distinct similarities in their taxonomic composition, moderate species diversity and low dominance indices. The communities are separated by the monospecific Kosoidea fissurella Community present just after the Lau and Kozlowskii bioevents during the period of high d13C values which is interpreted as an opportunistic community. Re-occurrence of some brachiopod taxa after the bioevents and the mid-Ludfordian carbon isotope excursion raises the question, at least for organophosphatic brachiopods, as to the extent to which the Lau and Kozlowskii bioevents represent true global extinction events and whether their significance has not been overestimated. Two new species are erected: Opsiconidion bouceki and Opsiconidion parephemerus.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10506 - Paleontology

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2018

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

—

Svazek periodika

93

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

32

Strana od-do

369 - 400

Kód UT WoS článku

000441904600007

EID výsledku v databázi Scopus

2-s2.0-85059170776