Boreal ammonites from the Brno Carbonate Platform (Czechia): High-resolution biostratigraphy of the Middle–Upper Jurassic boundary

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00094862%3A_____%2F25%3A10004670" target="_blank" >RIV/00094862:_____/25:10004670 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216224:14310/25:00141290

Výsledek na webu

<a href="https://doi.org/10.1016/j.geobios.2025.05.006" target="_blank" >https://doi.org/10.1016/j.geobios.2025.05.006</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.geobios.2025.05.006" target="_blank" >10.1016/j.geobios.2025.05.006</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Boreal ammonites from the Brno Carbonate Platform (Czechia): High-resolution biostratigraphy of the Middle–Upper Jurassic boundary

Popis výsledku v původním jazyce

This study provides a taxonomic and biostratigraphic evaluation of Boreal ammonites from the erosional relics of the Brno Carbonate Platform (Czech Republic) located on the northern shelf of the Tethys Ocean during the Jurassic. Several sections were studied in the Brno-Hády and Olomucvany areas. Ammonite tax-onomy and biostratigraphy of these typical localities of the Brno Carbonate Platform was presented more than 90 years ago, and it has not been updated since then. In our study, we present a new collection of mainly Boreal cardioceratid ammonites with short stratigraphic range covering an interval between the uppermost Callovian Lamberti Zone to the lower Oxfordian Cordatum Zone. The immigration of Boreal ammonites to the studied area corresponds to the maximum of the &apos;Boreal Spread&apos; event, which was the greatest southward expansion in the evolutionary history of the ammonite family Cardioceratidae and a major bio-event at the Middle-Late Jurassic (Callovian-Oxfordian) transition. The high-resolution stratigraphy of Callovian-Oxfordian transitional succession is provided for the first time for the Brno Carbonate Platform. The occurrences of the latest Callovian-early Oxfordian Boreal ammonites in the Brno Carbonate Platform indicate a direct marine connection with the Boreal Province during the Lamberti-Cordatum zones range. We also provide new data on the palaeobiodiversity and palaeobio-geography of Boreal ammonites and some remarks on the palaeogeography of the northern margin of the Tethys Ocean. The most probable migration route for Boreal ammonites was the Moravian Gate, con-necting the Brno Carbonate Platform and the Polish Basin.

Název v anglickém jazyce

Boreal ammonites from the Brno Carbonate Platform (Czechia): High-resolution biostratigraphy of the Middle–Upper Jurassic boundary

Popis výsledku anglicky

This study provides a taxonomic and biostratigraphic evaluation of Boreal ammonites from the erosional relics of the Brno Carbonate Platform (Czech Republic) located on the northern shelf of the Tethys Ocean during the Jurassic. Several sections were studied in the Brno-Hády and Olomucvany areas. Ammonite tax-onomy and biostratigraphy of these typical localities of the Brno Carbonate Platform was presented more than 90 years ago, and it has not been updated since then. In our study, we present a new collection of mainly Boreal cardioceratid ammonites with short stratigraphic range covering an interval between the uppermost Callovian Lamberti Zone to the lower Oxfordian Cordatum Zone. The immigration of Boreal ammonites to the studied area corresponds to the maximum of the &apos;Boreal Spread&apos; event, which was the greatest southward expansion in the evolutionary history of the ammonite family Cardioceratidae and a major bio-event at the Middle-Late Jurassic (Callovian-Oxfordian) transition. The high-resolution stratigraphy of Callovian-Oxfordian transitional succession is provided for the first time for the Brno Carbonate Platform. The occurrences of the latest Callovian-early Oxfordian Boreal ammonites in the Brno Carbonate Platform indicate a direct marine connection with the Boreal Province during the Lamberti-Cordatum zones range. We also provide new data on the palaeobiodiversity and palaeobio-geography of Boreal ammonites and some remarks on the palaeogeography of the northern margin of the Tethys Ocean. The most probable migration route for Boreal ammonites was the Moravian Gate, con-necting the Brno Carbonate Platform and the Polish Basin.

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

2025

Kód důvěrnosti údajů

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

Název periodika

Geobios

ISSN

0016-6995

e-ISSN

1777-5728

Svazek periodika

92

Číslo periodika v rámci svazku

říjen 2025

Stát vydavatele periodika

FR - Francouzská republika

Počet stran výsledku

19

Strana od-do

25-43

Kód UT WoS článku

001573298700001

EID výsledku v databázi Scopus

2-s2.0-105008108307