Osteology and relationships of Acrorhinichthys poyatoi gen. et sp. nov. (Pycnodontiformes) from the marine Late Cretaceous of Lebanon

  • Louis Taverne Royal Institute of Natural Sciences of Belgium, Department of Paleontology, rue Vautier 29, B-1000 Brussels, Belgium
  • Luigi Capasso Museo Universitario dell’Universitá “G. d’Annunzio” di Chieti-Pescara, Piazza Trento e Trieste, 1, I-661000 Chieti, Italy
DOI: https://doi.org/10.5852/ejt.2015.116
Keywords: Pycnodontiformes, Acrorhinichthys poyatoi gen. et sp. nov., osteology, relationships, Cretaceous, Lebanon

Abstract

The osteology of Acrorhinichthys poyatoi gen. et sp. nov., a pycnodontid fish from the marine Cenomanian (Late Cretaceous) of Lebanon, is studied in detail. The new fossil genus belongs to the order Pycnodontiformes, but is less evolved than the Pycnodontidae. It still exhibits a few bony plates (= tesserae) in the gular region, 3 teeth on the premaxilla and 5 teeth on the dentary, and its parietal is devoid of a brush-like process. It shares a few characters with Akromystax, the most primitive taxon within Pycnodontidae, characters lost in the other members of the family.

References

Capasso L.L., Abi Saad P. & Taverne L. 2009. Nursallia tethysensis sp. nov., a new pycnodont fish (Neopterygii + Halecostomi) from the Cenomanian of Lebanon. Bulletin de l’Institut Royal des Sciences Naturelles de Belgique, Sciences de la Terre 79: 117–136.

Capasso L.L., Taverne L. & Nohra R. 2010. A re-description of Hensodon spinosus, a remarkable coccodontid fish (Actinopterygii, †Pycnodontiformes) from the Cenomanian (Late Cretaceous) of Haqel, Lebanon. Bulletin de l’Institut Royal des Sciences Naturelles de Belgique, Sciences de la Terre 80: 145–162.

Gayet M. 1984. Ichthyoceros spinosus nov. gen., nov. sp., du Cénomanien inférieur de Hakel (Liban) et ses affinités avec le genre Trewavasia (Pisces, Pycnodontiformes, Coccodontidae). Bulletin du Muséum National d’Histoire Naturelle 4e série 6, section C, 3: 287–307.

Heckel J. 1854. Über den Bau und die Eintheilung der Pycnodonten, nebst kurzer Beschreibung einiger neuen Arten derselben. Sitzungsberichte der kaiserlichen Akademie der Wissenschaften, Mathematisch-Naturwissenschaftliche Klasse 12 (3): 433–464.

Hennig E. 1906. Gyrodus und die Organisation der Pyknodonten. Palaeontographica 53: 137–208.

Lambers P.H. 1991. The Upper Jurassic actinopterygian fish Gyrodus dichactinius Winkler 1862 (Gyrodus hexagonus [Blainville 1818]) from Solnhofen, Bavaria and anatomy of the genus Gyrodus Agassiz. Proceedings of the Koninklijke Nederlandse Akademie van Wetenschappen 94 (4): 489–544.

Nursall J.R. 1996. The phylogeny of pycnodont fishes. In: Arratia G. & Viohl G. (eds) Mesozoic Fishes – Systematics and Paleoecology: 125–152. Verlag Dr. F. Pfeil, München.

Nursall J.R. 1999. The family + Mesturidae and the skull of the pycnodont fishes. In: Arratia G. & Schultze H.-P. (eds) Mesozoic Fishes 2 – Systematics and Fossil Record: 153–188. Verlag Dr. F. Pfeil, München.

Nursall J.R. 2010. The case for pycnodont fishes as the fossil sister-group of teleosts. In: Nelson J.S., Schultze H.-P. & Wilson M.V.H. (eds) Origin and Phylogenetic Interrelationships of Teleosts: 37–60. Verlag Dr. F. Pfeil, München.

Nursall J.R. & Capasso L. 2004. Gebrayelichthys (novum), an extraordinary genus of neopterygian fishes from the Cenomanian of Lebanon. In: Arratia G. & Tintori A. (eds) Mesozoic Fishes 3 – Systematics, Paleoenvironments and Biodiversity: 317–340. Verlag Dr. F. Pfeil, München.

Nursall J.R. & Capasso L. 2008. Additional specimens from Lebanon reveal more of the structure of the pycnodont fish Trewavasia carinata Davis, 1887). In: Arratia G., Schultze H.-P. & Wilson M.V.H. (eds) Mesozoic Fishes 4 – Homology and Phylogeny: 143–166. Verlag Dr. F. Pfeil, München.

Patterson C. 1973. Interrelationships of holosteans. Zoological Journal of the Linnean Society 53, Suppl. 1: 233–305.

Poyato-Ariza F.J. & Wenz S. 2002. A new insight into pycnodontiform fishes. Geodiversitas 24 (1): 139–248.

Poyato-Ariza F.J. & Wenz S. 2004. The new pycnodontid fish genus Turbomesodon, and a revision of Macromesodon based on new material from the Lower Cretaceous of Las Hoyas, Cuenca, Spain. In: Arratia G. & Tintori A. (eds) Mesozoic Fishes 3 – Systematics, Paleoenvironments and Biodiversity: 341–378. Verlag Dr. F. Pfeil, München.

Poyato-Ariza F.J. & Wenz S. 2005. Akromystax tilmachiton gen. et sp. nov., a new pycnodontid fish from the Lebanese Late Cretaceous of Haqel and En Nammoura. Journal of Vertebrate Paleontology 25 (1): 27–45. http://dx.doi.org/10.1671/0272-4634(2005)025[0027:ATGESN]2.0.CO;2

Taverne L. & Capasso L. 2013a. Gladiopycnodontidae, a new family of pycnodontiform fishes from the Late Cretaceous of Lebanon, with the description of three genera. European Journal of Taxonomy 57: 1–30. http://dx.doi.org/10.5852/ejt.2013.57

Taverne L. & Capasso L. 2013b. Osteology and relationships of Rhinopycnodus gabriellae gen. et sp. nov. (Pycnodontiformes) from the marine Late Cretaceous of Lebanon. European Journal of Taxonomy 67: 1–14. http://dx.doi.org/10.5852/ejt.2013.67

Taverne L. & Capasso L. 2014a. Ostéologie et phylogénie des Coccodontidae, une famille remarquable de poissons Pycnodontiformes du Crétacé supérieur marin du Liban, avec la description de deux nouveaux genres. Palaeontos 25: 3–43.

Taverne L. & Capasso L. 2014b. Ostéologie et relations phylogénétiques des Gebrayelichtyidae (Halecostomi, Pycnodontomorpha), une extraordinaire famille de poissons du Crétacé supérieur marin du Liban, avec la description d’un nouveau genre. Palaeontos 25: 44–68.

Taverne L. & Capasso L. 2014c. On the “Coccodus” lindstroemi species complex (Pycnodontiformes, Gladiopycnodontidae) from the marine Late Cretaceous of Lebanon, with the description of two new genera. European Journal of Taxonomy 101: 1–27. http://dx.doi.org/10.5852/ejt.2014.101

Tintori A. 1980. Two new pycnodonts (Pisces, Actinopterygii) from the Upper Triassic of Lombardy (N. Italy). Rivista Italiana di Paleontologia e Stratigrafia 86 (4): 795–824.

Woodward A.S. 1918. The fossil fishes of the English Wealden and Purbeck Formations. Part 2: 49–104. Palaeontographical Society, London.

Published
2015-03-13
How to Cite
Taverne, L., & Capasso, L. (2015). Osteology and relationships of Acrorhinichthys poyatoi gen. et sp. nov. (Pycnodontiformes) from the marine Late Cretaceous of Lebanon. European Journal of Taxonomy, (116). https://doi.org/10.5852/ejt.2015.116
Issue
No. 116 (2015): Osteology and relationships of Acrorhinichthys poyatoi gen. et sp. nov. (Pycnodontiformes) from the marine Late Cretaceous of Lebanon
Section
Palaeontology
Copyright (c) 2015 Louis Taverne, Luigi Capasso

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