Ordovician fish from the Arabian Peninsula
| Autor: | Neil S. Davies, Alan P. Heward, Richard A. Fortey, Florentin Paris, C. Giles Miller, Ivan J. Sansom, Graham A. Booth |
|---|---|
| Přispěvatelé: | Géosciences Rennes (GR), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre Armoricain de Recherches en Environnement-Centre National de la Recherche Scientifique (CNRS), Université de Rennes (UR)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre Armoricain de Recherches en Environnement-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2009 |
| Předmět: |
010506 paleontology
Oman 010502 geochemistry & geophysics 01 natural sciences Sacabambaspis Paleontology Genus Peninsula Group (stratigraphy) 14. Life underwater Clade pteraspidomorphs Ecology Evolution Behavior and Systematics 0105 earth and related environmental sciences Ecological niche geography geography.geographical_feature_category biology Ordovician Gondwana palaeocontinent biology.organism_classification Gondwana [SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology Geology |
| Zdroj: | Palaeontology Palaeontology, Wiley, 2009, 52 (2), pp.337-342. ⟨10.1111/j.1475-4983.2009.00846.x⟩ Palaeontology, 2009, 52 (2), pp.337-342. ⟨10.1111/j.1475-4983.2009.00846.x⟩ |
| ISSN: | 0031-0239 1475-4983 |
| Popis: | International audience; Over the past three decades Ordovician pteraspidomorphs (armoured jawless fish) have been recorded from the fringes of the Gondwana palaeocontinent, in particular Australia and South America. These occurrences are dominated by arandaspid agnathans, the oldest known group of vertebrates with extensive biomineralisation of the dermoskeleton. Here we describe specimens of arandaspid agnathans, referable to the genus Sacabambaspis Gagnier, Blieck and Rodrigo, from the Ordovician of Oman, which represent the earliest record of pteraspidomorphs from the Arabian margin of Gondwana. These are among the oldest arandaspids known, and greatly extend the palaeogeographical distribution of the clade around the periGondwanan margin. Their occurrence within a very narrow, nearshore ecological niche suggests that similar Middle Ordovician palaeoenvironmental settings should be targeted for further sampling. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text