The First Fossil Coelacanth from Thailand
Mawsoniidae is a family of coelacanths restricted to the Mesozoic. During the Cretaceous, mawsoniids were mainly represented by the <i>Mawsonia</i>/<i>Axelrodichthy</i> complex, long known to be from western Gondwana only (South America and Africa). This apparent biogeographi...
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MDPI AG
2023-02-01
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| Online Access: | https://www.mdpi.com/1424-2818/15/2/286 |
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| author | Lionel Cavin Haiyan Tong Eric Buffetaut Kamonlak Wongko Varavudh Suteethorn Uthumporn Deesri |
| author_facet | Lionel Cavin Haiyan Tong Eric Buffetaut Kamonlak Wongko Varavudh Suteethorn Uthumporn Deesri |
| author_sort | Lionel Cavin |
| collection | DOAJ |
| description | Mawsoniidae is a family of coelacanths restricted to the Mesozoic. During the Cretaceous, mawsoniids were mainly represented by the <i>Mawsonia</i>/<i>Axelrodichthy</i> complex, long known to be from western Gondwana only (South America and Africa). This apparent biogeographical distribution then faded following the discovery of representatives in the Late Cretaceous of Laurasia (Europe and North America). We report here the presence, in the Lower Cretaceous site of Kham Phok, NE Thailand, of an angular bone referred to the <i>Mawsonia</i>/<i>Axelrodichthys</i> complex. A comparison with angulars referring to both genera found in various regions of the world between the Late Jurassic and the Late Cretaceous indicated that the distinctions between these genera, and even more so between their constituent species, are unclear. This discovery is further confirmation of the very slow morphological evolution within this lineage, which may explain why their evolutionary history appears to be disconnected, at least in part, from their geographical distribution over time. |
| first_indexed | 2024-03-11T08:56:18Z |
| format | Article |
| id | doaj.art-cde47dd8d24b41ce8421e8b543ccccb1 |
| institution | Directory Open Access Journal |
| issn | 1424-2818 |
| language | English |
| last_indexed | 2024-03-11T08:56:18Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
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| spelling | doaj.art-cde47dd8d24b41ce8421e8b543ccccb12023-11-16T20:05:43ZengMDPI AGDiversity1424-28182023-02-0115228610.3390/d15020286The First Fossil Coelacanth from ThailandLionel Cavin0Haiyan Tong1Eric Buffetaut2Kamonlak Wongko3Varavudh Suteethorn4Uthumporn Deesri5Department of Geology and Palaeontology, Natural History Museum of Geneva, 1208 Geneva, SwitzerlandPalaeontological Research and Education Centre, Mahasarakham University, Khamrieng, Kantharawichai District, Maha Sarakham 44150, ThailandPalaeontological Research and Education Centre, Mahasarakham University, Khamrieng, Kantharawichai District, Maha Sarakham 44150, ThailandMineral Resources Office Region 1, Department of Mineral Resources, 414 moo 3, Sala, Ko Kha, Lampang 52130, ThailandDinosaur Research Unit, Mahasarakham University, Khamrieng, Kantharawichai District, Maha Sarakham 44150, ThailandDepartment of Biology, Faculty of Science, Mahasarakham University, Khamrieng, Kantharawichai District, Maha Sarakham 44150, ThailandMawsoniidae is a family of coelacanths restricted to the Mesozoic. During the Cretaceous, mawsoniids were mainly represented by the <i>Mawsonia</i>/<i>Axelrodichthy</i> complex, long known to be from western Gondwana only (South America and Africa). This apparent biogeographical distribution then faded following the discovery of representatives in the Late Cretaceous of Laurasia (Europe and North America). We report here the presence, in the Lower Cretaceous site of Kham Phok, NE Thailand, of an angular bone referred to the <i>Mawsonia</i>/<i>Axelrodichthys</i> complex. A comparison with angulars referring to both genera found in various regions of the world between the Late Jurassic and the Late Cretaceous indicated that the distinctions between these genera, and even more so between their constituent species, are unclear. This discovery is further confirmation of the very slow morphological evolution within this lineage, which may explain why their evolutionary history appears to be disconnected, at least in part, from their geographical distribution over time.https://www.mdpi.com/1424-2818/15/2/286ActinistiaMawsoniidaepaleobiogeographyangularKhorat PlateauEarly Cretaceous |
| spellingShingle | Lionel Cavin Haiyan Tong Eric Buffetaut Kamonlak Wongko Varavudh Suteethorn Uthumporn Deesri The First Fossil Coelacanth from Thailand Diversity Actinistia Mawsoniidae paleobiogeography angular Khorat Plateau Early Cretaceous |
| title | The First Fossil Coelacanth from Thailand |
| title_full | The First Fossil Coelacanth from Thailand |
| title_fullStr | The First Fossil Coelacanth from Thailand |
| title_full_unstemmed | The First Fossil Coelacanth from Thailand |
| title_short | The First Fossil Coelacanth from Thailand |
| title_sort | first fossil coelacanth from thailand |
| topic | Actinistia Mawsoniidae paleobiogeography angular Khorat Plateau Early Cretaceous |
| url | https://www.mdpi.com/1424-2818/15/2/286 |
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