EdenteV2, France, Analysis, bibRecord, 000367

Diversification of bivalvesin the Ordovician

Identifieur interne : 000367 ( France/Analysis ); précédent : 000366; suivant : 000368

Diversification of bivalvesin the Ordovician

Auteurs : John C. W. Cope ; Claude Babin [France]

Source :

Geobios [ 0016-6995 ] ; 1999.

RBID : ISTEX:1148A30CB97E7ED10966E0EB92A6A27B11359735

Descripteurs français

Wicri :
- topic : Ressource minérale.

English descriptors

KwdEn :
- Arenig, Avalonia, Babin, Baltica, Bivalve, Bivalve evolution, Bivalve metabolism, Bivalves, Bivalvia, Brachiopod, Calcitic, Cambrian, Carbonate, Carbonate platforms, Catamarcaia, Dentition, Earliest bivalves, Earliest ordovician, Early arenig, Early ordovician, Early part, Epifaunal, Fauna, Filibranch gill, Food particles, Fordilla, Fossil, Genus, Gill, Gondwana, Gondwanan, Heterodonts, Infaunal, Late cambrian, Late ordovician, Late tremadoc, Mineral resources, Modiomorphoids, Mollusques bivalves, Montagne noire, Neotaxodonts, Noire, Ordovician, Ordovician evolution, Other continents, Palaeoheterodonts, Palaeontology, Palaeotaxodont, Palaeotaxodonts, Paleontology, Pelecypod, Philosophical transactions, Pojeta, Pteriomorphian, Radiations, Royal society, Runnegar pojeta, Shell layer, Shell microstructure, Subclass, Tremadoc, Tremadoc series, Valve, Ventral, Ventral margin, Western gondwana, Whilst.
Teeft :
- Arenig, Avalonia, Babin, Baltica, Bivalve, Bivalve evolution, Bivalve metabolism, Bivalvia, Brachiopod, Calcitic, Cambrian, Carbonate, Carbonate platforms, Catamarcaia, Dentition, Earliest bivalves, Earliest ordovician, Early arenig, Early ordovician, Early part, Epifaunal, Fauna, Filibranch gill, Food particles, Fordilla, Fossil, Genus, Gill, Gondwana, Gondwanan, Heterodonts, Infaunal, Late cambrian, Late ordovician, Late tremadoc, Mineral resources, Modiomorphoids, Mollusques bivalves, Montagne noire, Neotaxodonts, Noire, Ordovician, Ordovician evolution, Other continents, Palaeoheterodonts, Palaeontology, Palaeotaxodont, Palaeotaxodonts, Paleontology, Pelecypod, Philosophical transactions, Pojeta, Pteriomorphian, Royal society, Runnegar pojeta, Shell layer, Shell microstructure, Subclass, Tremadoc, Tremadoc series, Valve, Ventral, Ventral margin, Western gondwana, Whilst.

Abstract

Abstract: The Ordovician was the most significant Period in bivalve diversification. From a small Cambrianstock of palaeotaxodonts, the most fundamental radiation occurred in the early Ordovician. An intrinsic factor was the most significant, involving the evolution of the feeding gill within the palaeotaxodonts. This fundamental morphological change allowed development of more effective feeding strategies, permitting bivalves to take advantage of the increased Ordovician nutrient supply. This allowed rapid size increase and diversification, and colonization of a variety of habitats from entirely infaunal into semi-infaunal and epifaunal. By the end of the early Ordovician, seventeen families belonging to six subclasses have hitherto been recognised. Early Ordovician bivalves are restricted to peri-Gondwanan shelves and favoured inshore clastic sedimentary environments; it was not until the mid Ordovician that bivalves were able to migrate to other continents, but initially remained largely confined to nearshore clastic facies. The succeeding late Ordovician radiation was largely driven by extrinsic factors, as the development of low-latitude carbonate platforms promoted the evolution of many epifaunal groups, particularly the modiomorphoids and the pteriomorphians — the latter often characterized by a calcitic outer shell layer.

Url:

https://api.istex.fr/document/1148A30CB97E7ED10966E0EB92A6A27B11359735/fulltext/pdf

DOI: 10.1016/S0016-6995(99)80029-1

Affiliations:

France

Links toward previous steps (curation, corpus...)

to stream Istex, to step Corpus: 000850
to stream Istex, to step Curation: 000850
to stream Istex, to step Checkpoint: 004305
to stream Main, to step Merge: 009860
to stream Main, to step Curation: 009434
to stream Main, to step Exploration: 009434
to stream France, to step Extraction: 000367

Links to Exploration step

ISTEX:1148A30CB97E7ED10966E0EB92A6A27B11359735

Le document en format XML

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<term>Bivalve metabolism</term>
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<term>Palaeotaxodont</term>
<term>Palaeotaxodonts</term>
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<term>Tremadoc</term>
<term>Tremadoc series</term>
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<term>Ventral</term>
<term>Ventral margin</term>
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<term>Bivalve metabolism</term>
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<term>Genus</term>
<term>Gill</term>
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<term>Late ordovician</term>
<term>Late tremadoc</term>
<term>Mineral resources</term>
<term>Modiomorphoids</term>
<term>Mollusques bivalves</term>
<term>Montagne noire</term>
<term>Neotaxodonts</term>
<term>Noire</term>
<term>Ordovician</term>
<term>Ordovician evolution</term>
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<term>Palaeoheterodonts</term>
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<term>Palaeotaxodonts</term>
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<term>Shell microstructure</term>
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<term>Tremadoc</term>
<term>Tremadoc series</term>
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<term>Ventral margin</term>
<term>Western gondwana</term>
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<front><div type="abstract" xml:lang="en">Abstract: The Ordovician was the most significant Period in bivalve diversification. From a small Cambrianstock of palaeotaxodonts, the most fundamental radiation occurred in the early Ordovician. An intrinsic factor was the most significant, involving the evolution of the feeding gill within the palaeotaxodonts. This fundamental morphological change allowed development of more effective feeding strategies, permitting bivalves to take advantage of the increased Ordovician nutrient supply. This allowed rapid size increase and diversification, and colonization of a variety of habitats from entirely infaunal into semi-infaunal and epifaunal. By the end of the early Ordovician, seventeen families belonging to six subclasses have hitherto been recognised. Early Ordovician bivalves are restricted to peri-Gondwanan shelves and favoured inshore clastic sedimentary environments; it was not until the mid Ordovician that bivalves were able to migrate to other continents, but initially remained largely confined to nearshore clastic facies. The succeeding late Ordovician radiation was largely driven by extrinsic factors, as the development of low-latitude carbonate platforms promoted the evolution of many epifaunal groups, particularly the modiomorphoids and the pteriomorphians — the latter often characterized by a calcitic outer shell layer.</div>
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Diversification of bivalvesin the Ordovician

Diversification of bivalvesin the Ordovician

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Links to Exploration step

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri