A famennian (late devonian) conodont ...
Type de document :
Compte-rendu et recension critique d'ouvrage
Titre :
A famennian (late devonian) conodont assemblage from brachiopod-rich limestons of the Djravank section (southern armenia)
Auteur(s) :
Grigoryan, A. [Auteur]
Institute of Geological Sciences of the National Academy of Sciences of Armenia [IGS NAS RA]
Serobyan, V [Auteur]
Randon, Carine [Auteur]
Centre de Recherche en Paléontologie - Paris [CR2P]
Mayilyan, R [Auteur]
Avagyan, N [Auteur]
Danelian, T. [Auteur]
Évolution, Écologie et Paléontologie (Evo-Eco-Paleo) - UMR 8198 [Evo-Eco-Paléo (EEP)]
Institute of Geological Sciences of the National Academy of Sciences of Armenia [IGS NAS RA]
Serobyan, V [Auteur]
Randon, Carine [Auteur]
Centre de Recherche en Paléontologie - Paris [CR2P]
Mayilyan, R [Auteur]
Avagyan, N [Auteur]
Danelian, T. [Auteur]
Évolution, Écologie et Paléontologie (Evo-Eco-Paleo) - UMR 8198 [Evo-Eco-Paléo (EEP)]
Titre de la revue :
Известия НАН РА Науки о Земле
Pagination :
3 - 12
Date de publication :
2019
ISSN :
0515-961X
Mot(s)-clé(s) en anglais :
Biostratigraphy
Palaeozoic
Upper Devonian
Armenia: Taxonomy
Conodont
Brachiopod
Limestone
Djrаvank
Palaeozoic
Upper Devonian
Armenia: Taxonomy
Conodont
Brachiopod
Limestone
Djrаvank
Discipline(s) HAL :
Planète et Univers [physics]/Sciences de la Terre/Paléontologie
Résumé en anglais : [en]
Numerous conodont elements were yielded from a sandy brachiopod-rich limestone after processing with formic acid. The sample comes from a ca. 25 m-thick sequence of well-bedded nodular limestones, cropping out along a newly ...
Lire la suite >Numerous conodont elements were yielded from a sandy brachiopod-rich limestone after processing with formic acid. The sample comes from a ca. 25 m-thick sequence of well-bedded nodular limestones, cropping out along a newly explored section (Djravank), situated on the south bank of the river Arpa, of the river Arpa, near the village of Arpi in Vayots Dzor region. SEM observations allow the identification of species Icriodus cornutus, I. iowaensis iowaensis and Polygnathus sp.cf. P.bischoffi suggesting an early Famennian age. The 60-40% relative abundance of Icriodus and Polygnathus elements represents an icriodontid-polygnathid conodont biofacies typical of shallow water environments.Lire moins >
Lire la suite >Numerous conodont elements were yielded from a sandy brachiopod-rich limestone after processing with formic acid. The sample comes from a ca. 25 m-thick sequence of well-bedded nodular limestones, cropping out along a newly explored section (Djravank), situated on the south bank of the river Arpa, of the river Arpa, near the village of Arpi in Vayots Dzor region. SEM observations allow the identification of species Icriodus cornutus, I. iowaensis iowaensis and Polygnathus sp.cf. P.bischoffi suggesting an early Famennian age. The 60-40% relative abundance of Icriodus and Polygnathus elements represents an icriodontid-polygnathid conodont biofacies typical of shallow water environments.Lire moins >
Langue :
Anglais
Vulgarisation :
Non
Source :
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