The first articulated skeletons of enigmatic Late Cretaceous billfish-like actinopterygians

Only few candidates of Mesozoic fishes with a similar body plan and ecological niche to the modern billfishes are suggested as their analogues. Several specimens were recovered from Cenomanian deposits in Germany and Lebanon and display a billfish-like fusiform body with elongated premaxillae. They...

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Main Authors: Tamara El Hossny, Lionel Cavin, Ulrich Kaplan, Achim H. Schwermann, Elias Samankassou, Matt Friedman
Format: Article
Language:English
Published: The Royal Society 2023-12-01
Series:Royal Society Open Science
Subjects:
Online Access:https://royalsocietypublishing.org/doi/10.1098/rsos.231296
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author Tamara El Hossny
Lionel Cavin
Ulrich Kaplan
Achim H. Schwermann
Elias Samankassou
Matt Friedman
author_facet Tamara El Hossny
Lionel Cavin
Ulrich Kaplan
Achim H. Schwermann
Elias Samankassou
Matt Friedman
author_sort Tamara El Hossny
collection DOAJ
description Only few candidates of Mesozoic fishes with a similar body plan and ecological niche to the modern billfishes are suggested as their analogues. Several specimens were recovered from Cenomanian deposits in Germany and Lebanon and display a billfish-like fusiform body with elongated premaxillae. They are found close to the plethodids and show a unique combination of characters (rostrum pointed and extremely elongated, double articular head of the quadrate, anteroposteriorly elongated abdominal centra indicating a slender body and different types of scales on the body) allowing their inclusion in a new genus. Two ‘Protosphyraena’ species are also assigned to this new genus. This fish can be considered as an ecological analogue to the extant xiphioids sharing their feeding habits. This fish was abundant and roamed, as an apex predator, the Central Tethys and the Boreal realms during the Cenomanian.
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spelling doaj.art-b0195a469eee4516a8735ea90cc44d0a2024-01-09T09:59:12ZengThe Royal SocietyRoyal Society Open Science2054-57032023-12-01101210.1098/rsos.231296The first articulated skeletons of enigmatic Late Cretaceous billfish-like actinopterygiansTamara El Hossny0Lionel Cavin1Ulrich Kaplan2Achim H. Schwermann3Elias Samankassou4Matt Friedman5Department of Earth Sciences, University of Geneva, Rue des Maraîchers 13, 1205 Geneva, SwitzerlandDépartement de Géologie et de Paléontologie, Muséum d'Histoire Naturelle de la Ville de Genève, CP 6434, 1211 Geneva 6, SwitzerlandEichenallee 141, 33332 Gütersloh, GermanyLWL-Museum für Naturkunde Westfälisches Landesmuseum mit Planetarium, Sentruper Strasse 285, 48161 Münster, GermanyDepartment of Earth Sciences, University of Geneva, Rue des Maraîchers 13, 1205 Geneva, SwitzerlandMuseum of Paleontology and Department of Earth and Environmental Sciences, University of Michigan, Ann Arbor, MI, USAOnly few candidates of Mesozoic fishes with a similar body plan and ecological niche to the modern billfishes are suggested as their analogues. Several specimens were recovered from Cenomanian deposits in Germany and Lebanon and display a billfish-like fusiform body with elongated premaxillae. They are found close to the plethodids and show a unique combination of characters (rostrum pointed and extremely elongated, double articular head of the quadrate, anteroposteriorly elongated abdominal centra indicating a slender body and different types of scales on the body) allowing their inclusion in a new genus. Two ‘Protosphyraena’ species are also assigned to this new genus. This fish can be considered as an ecological analogue to the extant xiphioids sharing their feeding habits. This fish was abundant and roamed, as an apex predator, the Central Tethys and the Boreal realms during the Cenomanian.https://royalsocietypublishing.org/doi/10.1098/rsos.231296ecological analogueCenomanianbillfishesProtosphyraenaPlethodidaeRhamphoichthys taxidiotis
spellingShingle Tamara El Hossny
Lionel Cavin
Ulrich Kaplan
Achim H. Schwermann
Elias Samankassou
Matt Friedman
The first articulated skeletons of enigmatic Late Cretaceous billfish-like actinopterygians
Royal Society Open Science
ecological analogue
Cenomanian
billfishes
Protosphyraena
Plethodidae
Rhamphoichthys taxidiotis
title The first articulated skeletons of enigmatic Late Cretaceous billfish-like actinopterygians
title_full The first articulated skeletons of enigmatic Late Cretaceous billfish-like actinopterygians
title_fullStr The first articulated skeletons of enigmatic Late Cretaceous billfish-like actinopterygians
title_full_unstemmed The first articulated skeletons of enigmatic Late Cretaceous billfish-like actinopterygians
title_short The first articulated skeletons of enigmatic Late Cretaceous billfish-like actinopterygians
title_sort first articulated skeletons of enigmatic late cretaceous billfish like actinopterygians
topic ecological analogue
Cenomanian
billfishes
Protosphyraena
Plethodidae
Rhamphoichthys taxidiotis
url https://royalsocietypublishing.org/doi/10.1098/rsos.231296
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