Plectocretacicoidei Explained

Plectocretacicoidei is an extinct suborder of Actinopterygii belonging to the order Tetraodontiformes, which includes the triggerfishes, filefishes, pufferfishes and related groups.^{[1] [2]}

The fishes in this suborder were extant from the Late Cretaceous (Santonian to Campanian) of Italy and Slovenia, both in the former Tethyan region, and are regarded as basal Tetraodontiformes.^[3]

The classification of the Plectocretacicoidei as a sister group to the Tetraodontiformes has been challenged and many of the characteristics which were used to suggest a close relationship to the Tetraodontiformes are shared with the Lophiiformes, the anglerfishes, and the Lophiiformes and Tetraodontiformes share derived characteristics which are not present in the Plectocretacicoidei. The authors of this study suggest that the taxa included within Plectocretacicoidei are basal members of the Percomorpha.^[4]

Families

Plectocretacicoidei includes the following families:^{[1] [5]} '

• Cretatriacanthidae Tyler & Sorbini, 1996
• Plectocretacicidae Tyler & Sorbini, 1996
• Protriacanthidae Tyler & Sorbini, 1996

Notes and References

1. Book: Nelson, J.S. . Joseph S. Nelson . Grande, T.C. . Wilson, M.V.H. . 2016 . Fishes of the World . 5th . . Hoboken, NJ . 518–526 . 978-1-118-34233-6 . 2015037522 . 951899884 . 25909650M . 10.1002/9781119174844.
2. Web site: †suborder Plectocretacicoidei (ray-finned fish). 25 August 2024 . Paleaobiology Database.
3. Book: Tyler . James C. . New superfamily and three new families of tetraodontiform fishes from the Upper Cretaceous : the earliest and most morphologically primitive plectognaths . Tyler . James C. . Sorbini . Lorenzo . Institution . Smithsonian . 1996 . Smithsonian Institution Press . Washington, D.C.
4. Near . Thomas J. . Thacker . Christine E. . 2024-04-18 . Phylogenetic Classification of Living and Fossil Ray-Finned Fishes (Actinopterygii) . Bulletin of the Peabody Museum of Natural History . 65 . 1 . 10.3374/014.065.0101 . 0079-032X. free .
5. Franceso Santini. James C. Tyler . A phylogeny of the families of fossil and extant tetraodontiform fishes (Acanthomorpha, Tetraodontiformes), Upper Cretaceous to Recent . Zoological Journal of the Linnean Society . 139 . 4 . 2003 . 565–617 . 10.1111/j.1096-3642.2003.00088.x.