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Ostéologie et position systématique d'Arratiaelops vectensis gen. nov., téléostéen élopiforme du Wealdien (Crétacé inférieur) d'Angleterre et de BelgiqueOsteology and systematic position of Arratiaelops vectensis gen. nov., elopiform teleost from the Wealden (Early Cretaceous) of England and Belgium
Taverne, L. (1999). Ostéologie et position systématique d'Arratiaelops vectensis gen. nov., téléostéen élopiforme du Wealdien (Crétacé inférieur) d'Angleterre et de Belgique Osteology and systematic position of Arratiaelops vectensis gen. nov., elopiform teleost from the Wealden (Early Cretaceous) of England and Belgium. Bull. Kon. Belg. Inst. Natuurwet. Aardwet. = Bull. - Inst. r. sci. nat. Belg., Sci. Terre 69: 77-96
In: Bulletin van het Koninklijk Belgisch Instituut voor Natuurwetenschappen. Aardwetenschappen = Bulletin de l'Institut Royal des Sciences Naturelles de Belgique. Sciences de la Terre. KBIN: Brussel. ISSN 0374-6291, more
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Keywords
    Cretaceous; Cretaceous, Lower; Actinopterygii [WoRMS]; Arratiaelops vectensis; Elopiformes [WoRMS]; Belgium, Bernissart [Marine Regions]; Europe, England; Marine
Author keywords
    Arratiaelops vectensis, new genus, Elopiformes, Early Cretaceous, England, Belgium, genre nouveau, Crétacé inférieur, Angleterre, Belgique

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Abstract
    The osteology of Arratiaelops vectensis gen. nov. from the Wealden (Early Cretaceous) of England and Belgium is studied in detail. The comparison with Pachythrissops laevis from the English Purbeckian and Pachythrissops propterus from the Tithonian of Bavaria shows that the Wealden species does not belong to the genus Pachythrissops as previously thought. Its oral dentition with large bands of numerous very small teeth, its retroarticular fused with the angular and forming a part of the joint surface for the quadrate, its autogenous articular, the posterior opening for the mandibular sensory canal on the medial surface of the angular, its parasphenoid denticulated but devoid of basiptcrygoid process, its very large supratemporal, and its large, roofed and posteriorly placed temporal fossa in which the exoccipital is participating are all characters which, when joined together, situate Arratiaelops vectensis within the Elopiformes. Some cranial apomorphies connect it more particularly with the Megalopidae. Comparisons with the other fossil and modern Elopiformes and especially with Flindersichthys denmeadi from the Albian of Australia are made. They attest that Arratiaelops vectensis really belongs to a new genus.

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