Rise and fall of †Pycnodontiformes: Diversity, competition and extinction of a successful fish clade [PDF]
Ecology and Evolution, 2021 †Pycnodontiformes was a successful lineage of primarily marine fishes that broadly diversified during the Mesozoic. They possessed a wide variety of body shapes and were adapted to a broad range of food sources.
John J. Cawley +5 more
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Feeding mechanisms and ecology of pycnodont fishes (Neopterygii, Pycnodontiformes) [PDF]
Fossil Record, 2001 The functional morphology of the jaw apparatus and the skull and the feeding habits of the extinct pycnodont fishes are reconstructed in comparison with some extant halecostomes.
J. Kriwet
doaj +12 more sources
Possible sexual dimorphism in Pankowskichthys libanicus (Neopterygii, Pycnodontiformes) from the Cenomanian of Lebanon [PDF]
Research & Knowledge, 2017 Sexual dimorphism is a commonly observed phenomenon in the natural world today but it is far more difficult to determine how common it was in extinct taxa.
John J. Cawley, Jürgen Kriwet
doaj +4 more sources
New information about late cretaceous pycnodont fishes (Actinoptergyii, Pycnodontiformes) from the near east [PDF]
Research & Knowledge, 2017 Over roughly the last decade, the Lebanese Cenomanian localities have revealed high numbers of newly discovered pycnodont taxa and even two new families of pycnodonts.
John J. Cawley, Jürgen Kriwet
doaj +5 more sources
A quantitative approach to determine the taxonomic identity and ontogeny of the pycnodontiform fish Pycnodus (Neopterygii, Actinopterygii) from the Eocene of Bolca Lagerstätte, Italy [PDF]
PeerJ, 2018 Background The pycnodontiform fish Pycnodus is one of the representatives of the highly diverse actinopterygian fish fauna from the early Eocene Bolca Lagerstätte, representing one of the youngest and thus last occurrences of this extinct neopterygian ...
John Joseph Cawley +3 more
doaj +9 more sources
The dentition of the enigmatic pycnodont fish, Athrodon wittei (Fricke, 1876) (Neopterygii, Pycnodontiformes; Late Jurassic; NW Germany) [PDF]
Fossil Record, 2008 Most pycnodontiform fishes are represented by their distinctive dentition alone, whereas articulated skeletons are very rare and the systematic position of most taxa based upon isolated teeth and the association of upper and lower dentitions to a ...
J. Kriwet
doaj +10 more sources
Ray-finned fishes (Actinopterygii) from the Upper Jurassic (Oxfordian) of the Atacama Desert, Northern Chile [PDF]
PeerJ, 2022 This contribution presents novel records of ray-finned fishes from the Oxfordian of Cerritos Bayos, northern Chile. This includes a Pachycormiformes diversity represented by macropredatory forms (aff. Hypsocormus sp.
Rodrigo A. Otero
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Failed prey or peculiar necrolysis? Isolated ammonite soft body from the Late Jurassic of Eichstätt (Germany) with complete digestive tract and male reproductive organs [PDF]
Swiss Journal of Palaeontology, 2021 Ammonoid soft parts have been rarely described. Here, we document the soft parts of a perisphinctid ammonite from the early Tithonian of Wintershof near Eichstätt (Germany). This exceptional preservation was enabled by the special depositional conditions
Christian Klug +3 more
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A unique Cretaceous–Paleogene lineage of piranha-jawed pycnodont fishes [PDF]
Scientific Reports, 2017 The extinct group of the Pycnodontiformes is one of the most characteristic components of the Mesozoic and early Cenozoic fish faunas. These ray-finned fishes, which underwent an explosive morphological diversification during the Late Cretaceous, are ...
Romain Vullo +8 more
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Phanerozoic survivors: Actinopterygian evolution through the Permo-Triassic and Triassic-Jurassic mass extinction events. [PDF]
Evolution, 2018 Abstract Actinopterygians (ray‐finned fishes) successfully passed through four of the big five mass extinction events of the Phanerozoic, but the effects of these crises on the group are poorly understood. Many researchers have assumed that the Permo‐Triassic mass extinction (PTME) and end‐Triassic extinction (ETE) had little impact on actinopterygians,
Smithwick FM, Stubbs TL.
europepmc +2 more sources