A New Sinamiin Fish (Actinopterygii) from the Early Cretaceous of Thailand: Implications on the Evolutionary History of the Amiid Lineage
Rattachement africain : th, jp, ch. Niveau de preuve : code pays fourni par la source.
Le résumé fourni par la source
The Sinamiidae are a family of halecomorph fishes (Holostei) stratigraphically limited to the Lower Cretaceous and confined to East Asia. The first species of sinamiids were discovered in China, and then new occurrences were recorded in Thailand and Japan. The three recognized genera, Sinamia, Siamamia and Ikechaoamia, are notably characterized by an unpaired parietal. Here, we describe a new genus and species of sinamiid based on material from the Aptian Khok Kruat Formation of Ban Krok Duean Ha, Nakhon Ratchasima, Thailand. The new taxon known from preserved specimens in 3D is characterized by four pairs of extrascapular and tall cylindrical teeth with a conical enamel stalk topped by an arrowhead-shaped acrodine cap, among other characters. A phylogenetic analysis of the halecomorph fishes shows that the new taxon is the sister of the other Thai species, Siamamia naga, and that the two are grouped with two Chinese genera in a strongly supported clade, the Sinamiinae. This subfamily is here grouped with the Amiinae that contained the extant Amia. This new discovery is a clue that Southeast Asia may have been a center of diversification for this fish clade, and the phylogenetic analysis reveals that amiines may have originated somewhere in Asia during the Cretaceous before they spread throughout the northern hemisphere.
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Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- A New Sinamiin Fish (Actinopterygii) from the Early Cretaceous of Thailand: Implications on the Evolutionary History of the Amiid Lineage
- Date Crossref
- 27/03/2023
- Éditeur
- MDPI AG
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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Mahasarakham University pays non établi dans la noticeUniversité ou école supérieure
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Nakhon Ratchasima Rajabhat University Northeastern Research Institute of Petrified Wood and Mineral Resources pays non établi dans la noticeUniversité ou école supérieure
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Fukui Prefectural Dinosaur Museum pays non établi dans la noticeInstitution
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University of Geneva Department of Earth Sciences pays non établi dans la noticeUniversité ou école supérieure
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Natural History Museum of Geneva pays non établi dans la noticeInstitution
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Faculty of Science Department of Biology pays non établi dans la noticeUniversité ou école supérieure
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Department of Geology and Palaeontology pays non établi dans la noticeInstitution
Mahasarakham University, Northeastern Research Institute of Petrified Wood and Mineral Resources — Nakhon Ratchasima Rajabhat University et Fukui Prefectural Dinosaur Museum, avec 4 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.