The bivalve fauna from the Fezouata Formation (Lower Ordovician) of Morocco and its significance for palaeobiogeography, palaeoecology and early diversification of bivalves

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F16%3A00000041" target="_blank" >RIV/00025798:_____/16:00000041 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.sciencedirect.com/science/journal/00310182/460" target="_blank" >http://www.sciencedirect.com/science/journal/00310182/460</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.palaeo.2015.12.016" target="_blank" >10.1016/j.palaeo.2015.12.016</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The bivalve fauna from the Fezouata Formation (Lower Ordovician) of Morocco and its significance for palaeobiogeography, palaeoecology and early diversification of bivalves

Popis výsledku v původním jazyce

Early Ordovician bivalves are rare worldwide; thus discovery of any newbivalve fauna of this age presents an exceptional event. A new abundant bivalve fauna from the Fezouata Formation of Morocco includes nine genera; Alococoncha?, Babinka, Cardiolaria?, Coxiconchia, Ekaterodonta, Glyptarca, Cienagomya?, Praenucula?, and Redonia. Bivalves from the Fezouata Formation show close affinities with assemblages of comparable age known fromthe Montagne Noire as well as withMiddle Ordovician bivalve faunas fromPerunica, Iberia, Avalonia and Australia. Some genera are in commonwith Early Ordovician bivalves from South American West Gondwana (Argentina and Bolivia). The Montagne Noire and Morocco played an important role in the distribution of important groups of bivalves to other regions of European peri-Gondwana (Armorica, Perunica, Iberia) and probably similarly during theMiddle Ordovician for the expansion of bivalves through Avalonia to other continents like Baltica and Laurentia. Quantitatively, the Early Ordovician bivalve fauna of Morocco is dominated by heteroconchs associated with protobranchs and pteriomorphs. The dominance of heteroconchs and poor evidence of pteriomorphs are conspicuous here and both of these features characterise a high latitude bivalve fauna. Exclusively infaunal burrowers (filter feeders and deposit feeders) are present in siliciclastic facies of the Fezouata Formation. The genus Redonia completely dominates the Early Ordovician bivalve fauna ofMorocco. Functionalmorphology ofmuscle scars in Early Ordovician and Cambrian bivalves is compared. Two conspicuous complexmuscular systems, decisive for an efficient burrowing, appear already in the Early Ordovician. Myophoric buttress in Early Ordovician protobranchs and heteroconchs seems to be an important character for serving as the attachment point for muscles, which helped to hold the visceral sac during burrowing.

Název v anglickém jazyce

The bivalve fauna from the Fezouata Formation (Lower Ordovician) of Morocco and its significance for palaeobiogeography, palaeoecology and early diversification of bivalves

Popis výsledku anglicky

Early Ordovician bivalves are rare worldwide; thus discovery of any newbivalve fauna of this age presents an exceptional event. A new abundant bivalve fauna from the Fezouata Formation of Morocco includes nine genera; Alococoncha?, Babinka, Cardiolaria?, Coxiconchia, Ekaterodonta, Glyptarca, Cienagomya?, Praenucula?, and Redonia. Bivalves from the Fezouata Formation show close affinities with assemblages of comparable age known fromthe Montagne Noire as well as withMiddle Ordovician bivalve faunas fromPerunica, Iberia, Avalonia and Australia. Some genera are in commonwith Early Ordovician bivalves from South American West Gondwana (Argentina and Bolivia). The Montagne Noire and Morocco played an important role in the distribution of important groups of bivalves to other regions of European peri-Gondwana (Armorica, Perunica, Iberia) and probably similarly during theMiddle Ordovician for the expansion of bivalves through Avalonia to other continents like Baltica and Laurentia. Quantitatively, the Early Ordovician bivalve fauna of Morocco is dominated by heteroconchs associated with protobranchs and pteriomorphs. The dominance of heteroconchs and poor evidence of pteriomorphs are conspicuous here and both of these features characterise a high latitude bivalve fauna. Exclusively infaunal burrowers (filter feeders and deposit feeders) are present in siliciclastic facies of the Fezouata Formation. The genus Redonia completely dominates the Early Ordovician bivalve fauna ofMorocco. Functionalmorphology ofmuscle scars in Early Ordovician and Cambrian bivalves is compared. Two conspicuous complexmuscular systems, decisive for an efficient burrowing, appear already in the Early Ordovician. Myophoric buttress in Early Ordovician protobranchs and heteroconchs seems to be an important character for serving as the attachment point for muscles, which helped to hold the visceral sac during burrowing.

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

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

Palaeogeography, Palaeoclimatology, Palaeoecology

ISSN

0031-0182

e-ISSN

—

Svazek periodika

460

Číslo periodika v rámci svazku

October

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

15

Strana od-do

155-169

Kód UT WoS článku

000383296200013

EID výsledku v databázi Scopus

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